Sandon

Welcome to the NGC chat board. The depressed area at the center of the raised areas indicates that this is a deep scratch, possibly caused by a nail or similar sharp object. The raised areas are metal displaced by the scratch. A die crack or break would be raised in its entirety.

I think that your bidders are being facetious. Let's see if the high bidder pays up!

1859-S Liberty Seated half dollar, PCGS graded XF 40. This coin appears to me to have Ch. XF-AU details but to have been net graded due to a light "cleaning".

1951-D Lincoln cent, PCGS graded MS 66 RD:

Welcome to the NGC chat board. It is difficult to advise you specifically without having any idea of the content of the collection or how serious a collector your grandfather was. Many people casually collected coins years ago and have numerous items that are still of little value. Others who were serious collectors may have left pieces of substantial value. I assume that there was no inventory and appraisal of the collection made in connection with the probate of his estate. State laws generally require such inventories and appraisals of valuable items, though sometimes these legal obligations are not performed. I suggest that you obtain a copy of a current (2025) or recent edition of A Guide Book of United States Coins, commonly known as the "Red Book", where you can get some idea of what your grandfather had and whether there may be any particularly valuable pieces. This book is available from its publisher at whitman.com and at some booksellers and coin shops. If it appears that you have items of substantial value, you may wish to have the collection professionally appraised. See https://www.pngdealers.org/af_memberdirectory.asp and Find Coin Shops & Dealers | Coin Dealer Locator | NGC (ngccoin.com) to locate dealers who might perform such appraisals in your area. You should expect to pay a reasonable fee for this appraisal, and you should not sell any of the coins to the dealer who conducted the appraisal. Bear in mind that any dime, quarter or half dollar dated before 1965 is composed of 90% silver and at current high silver prices is worth over 22 times its face value no matter how common the coin is. Silver dollars dated through 1935 are currently worth about $24 just in silver. Half dollars dated from 1965-70 also have some silver value. See U.S. Silver Coin Melt Values | Silver Dollar Melt Value | NGC (ngccoin.com) for current values of U.S. silver coins, which change daily. Although you may post clear, cropped images of both sides of individual coins as separate topics for our opinions, there is a limit to what we can see from photos, and it would not be feasible to assess large numbers of pieces in this manner.

See the following infographic to see the differences: Note especially (1) the difference in distance between the numeral "2" and the rim and (2) the difference in size in the top loop of the "8".

Welcome to the NGC chat board. I doubt that it would be possible to determine what certification number this coin previously had if you don't have and can't retrieve the label. If this coin is rare and distinctive enough, you might be able to match it to its photo in an auction or other sale when it was in the NGC Ancients holder and determine the certification number that way. The removal of the coin from the holder negated the grading guarantee, such as it is, and there is no guarantee of authenticity for ancients. See Guarantee for Ancient Coin Grading | NGC (ngccoin.com). You would have to resubmit the coin to get it back in a holder and would receive a new certification number.

Sorry, but most numismatists nowadays do in fact classify doubled dies as die varieties, not as mint errors, because the distinctive characteristic is in the die itself, resulting in multiple coins struck by this die retaining this characteristic. See Seeing Double: The Popularity of Doubled-Die Varieties | NGC (ngccoin.com). (I can't recall anyone else distinguishing between an error and a die variety on the basis of the number of pieces known.) On the other hand, an individual coin that was struck twice in different positions by a normal die would be classified as a mint error. As mints don't intend to create doubled dies, they are "errors" in that sense, but we all have to use the same terminology to understand each other. NGC generally only attributes coins as die varieties, including doubled dies, if they are listed on VarietyPlus. There are no varieties listed for Canadian $5 gold of any date. See Canada Categories | VarietyPlus® | NGC (ngccoin.com). Presumably, an exception could be made for a major new discovery, but if you checked "Mint Error" instead of "VarietyPlus" on the submission form, the error attributors, who I understand are different from the variety attributors, may not have even looked for a doubled die.

You should be able to access the links by just left clicking them. You can use the PNG member directory to see if there are any PNG member dealers in your area whom you could arrange to meet.

@Mike Meenderink has a point. There appear to be definite differences in detail between authenticated examples of 1943 bronze cents, as well as steel cents, and the piece in question here. See also the images of an NGC authenticated piece at 1943 BRONZE 1C MS | Coin Explorer | NGC (ngccoin.com). It looks like only Pepe profited from the deal. If you still think that you may have a genuine 1943 bronze cent, you may want to submit it to NGC or PCGS. You may want to obtain the advice and assistance of a reputable dealer (such as a Professional Numismatists Guild member) in making the submission. See https://www.pngdealers.org/af_memberdirectory.asp.

The following links should help you learn the difference between die doubling and other types of doubling, which generally have no collector value: Double Dies vs. Machine Doubling | NGC (ngccoin.com). (Machine doubling, such as appears on your coin, is also known as strike or mechanical doubling.) https://www.doubleddie.com/144801.html and links at the bottom of the page. Doubled dies are classified as die varieties, not as mint errors. Variety vs. Mint Error | NGC (ngccoin.com) If you selected "Mint Error", instead of "VarietyPlus" on the submission form, the coin might not have been attributed as a doubled die even if it were one. Moreover, NGC normally only attributes the significant varieties listed on VarietyPlus, and there are no 1990 doubled die cent varieties listed there. See Lincoln Cents, Memorial Reverse (1959-2008) | VarietyPlus® | NGC (ngccoin.com). A die variety with distinct die doubling on both sides (unheard of to my knowledge) from 1990 would likely have been discovered by now and would almost certainly be listed on VarietyPlus. There are many things that you will need to know before it would likely be worthwhile for you to submit coins to grading services, and it will likely take some years before you have acquired the necessary knowledge and experience. Tip: You will very rarely, if ever, find a coin in change that would be worthy of submission.

Although the coin's not being attracted to a magnet suggests that it is not a normal 1943 zinc coated steel cent that was copper plated outside of the mint, the odds are that it is one of many counterfeits made over the years. The coin's severe damage, wear and discoloration may have been contrived to give the impression that it was a coin found in circulation and to cover up the counterfeiter's inability to recreate the fine details and appearance of a genuine piece. I agree that it is not impossible that this is a genuine 1943 cent struck on a stray bronze planchet, but it is unlikely. I would also be interested in learning about its provenance.

1840-O Liberty Seated half dollar, PCGS graded XF 40: Photos courtesy of Stacks Bowers Galleries.

The edge lettering doesn't appear to match that of a genuine piece.

See this announcement from July 25, 2023: NGC Introduces New High-Security Hologram with Unique QR Codes | NGC (ngccoin.com). These new stickers were apparently not used on all submissions for several months.

Welcome to the NGC chat board. I assume that by "conditioned" you mean "conserved". NCS (NGC's affiliate) uses processes that can remove surface contaminants from coins but cannot remove or reverse corrosion, nor could the deep cuts be repaired. See Coin Conservation | NCS | Numismatic Conservation Services | NGC (ngccoin.com). You may want to try soaking this New Jersey copper in acetone or even distilled water to see if this improves its appearance by removing any mud or other residue that hasn't chemically become part of the coin's surface. The coin could only be "Details" graded even if successfully "conserved" and, in my opinion, wouldn't be worth the substantial cost of conservation, grading and shipping. See NGC Services and Fees | NGC (ngccoin.com). If you do decide to submit it, it may be somewhat less expensive to do so through an NGC member dealer instead of submitting it yourself. See Find Coin Shops & Dealers | Coin Dealer Locator | NGC (ngccoin.com). This piece is still rather nice for a "ground find".

1880 Proof Liberty Seated half dollar, NGC graded PF 62 (older holder):

Proof 1964 Washington quarter, NGC graded PF 69 though not as mirrorlike as some and rather inexpensive:

This coin is likely counterfeit, though apparently modeled from a genuine O-102. The odd surface texture and uneven wear are suspicious. What does the edge of the coin look like? A 1795 half dollar should have "FIFTY CENTS OR HALF A DOLLAR" with decorations between the words as shown on this image from NGC VarietyPlus:

The new photos show details that weren't visible before. I see a trace of the reverse design (oak leaves) as well as the obverse on the side that previously appeared to be blank. This could be some kind of "brockage", where a previously struck coin was stuck on the reverse die when this coin was struck, although that doesn't account for the trace of the reverse design as well. Let's see what Mr. Sullivan's opinion will be.

1951 Lincoln cent, PCGS graded MS 66 RD:

In addition to awaiting any additional responses on this forum, you might want to post this coin on the CONECA forum at https://board.conecaonline.org/forum. You can also request an opinion from Jon Sullivan, a respected errors dealer, at https://sullivannumismatics.com/contact-us/. If this coin were authenticated as a genuine indent strike or other significant mint error, it would have some value, although, as each error coin is unique, how much is difficult to say. I continue to have my own misgivings as to its authenticity.

Welcome to the NGC chat board. I'll add to what has already been said that acetone is a solvent that should remove surface dirt or contaminants from a coin's surface and is not considered "cleaning", which is a process that chemically or abrasively alters the coin's surface. Be careful using acetone, as it is highly flammable. As "toning" is formed by chemical compounds that have bonded with a coin's surface, a solvent such as acetone should not affect them. If it does, what you saw wasn't toning.

1877 Shield nickel (proof-only key date), PCGS graded PR 63:

Welcome to the NGC chat board. The "Coin Marketplace" forum is dedicated to topics offering to buy or sell coins in accordance with the Guidelines posted near the top of the forum, with which your topic does not comply. A topic like this one should be posted on the "Newbie Coin Collecting Questions" forum, where it would receive appropriate attention. You should not offer to sell a coin when you have no knowledge of its value. The images you provided of your 1998-D cent are too brightly lit and/or have inadequate resolution to see any details clearly, as well as being uncropped. Try to post clearer images that are cropped like this: I think I see some light, shallow "strike doubling", also known as machine or mechanical doubling north of "WE TRUST", which is extremely common and of no collector value. See Double Dies vs. Machine Doubling | NGC (ngccoin.com). I can see no mint-made anomaly on the "A" in "AMERICA", which may have suffered a nick. You appear to be a victim of internet disinformation. In reality, it is extremely unusual to find any coin of substantial value in pocket change. Submitting coins for third-party grading is for those who have sufficient knowledge and experience to make a likely determination of the coin's identity, grade and value.