RWB

If the same coins were submitted, it is then you would see gradeflation on the labels. There evidently aren't enough high grade pieces available to disturb the current distribution curve.

Yes. A couple of Saudi gold discs as part of research into die varieties, and another coin to remain anonymous until I've completed research. I would like to acquire all coins and data relating to 1921 Peace dollar proofs including the ones that are slabbed that way but are not real proofs. Try approaching it this way: I collect pieces of history, economy, society, and American culture. I collect the information they might contain, and the coin itself is merely a carrier (and investment) of the item. Anything discovered, becomes available to collectors and numismatists through publication.

The following is a partial explanation for off-center strikes using a new Ferracute press in 1893. This defect - stripped threads - allowed the entire upper die stake to drift out of alignment. Look at the patent press drawings in Journal of Numismatic Research, Issue #1 to better understand the letter. Mint of the United States at Philadelphia May 11th 1893 Hon O.C. Bosbyshell, Superintendent Sir: The thread in the holes in the cast iron head of the Ferracute coining press where the long bolts run through the arch to hold the upper dies has torn out - this permits the die holder to move about and consequently the die does not strike the centre of the planchet. The thread seems to have been too short in length to hold. A new head will have to be furnished and the Ferracute Company had better send here and see what is needed. Very Respectfully W. S. Steel [RG104 E-17 Box 1 Vol 1 May 19 1892-Apr 18 1899]

This letter includes a good, brief description of automatic weighing and sorting machines, 1897.

Here are my buying criteria. They are likely very different than those of others. 1st – Is the coin special in some way relating to numismatic research? 2nd – Is it unique or readily available? 3rd – Is it of superior quality with respect to the features that make it a research subject, or supporting evidence. 4th – Cost to acquire. Is this possible? 5th – Is it likely to increase in value or should it be disposed of quickly?

Please see and take the pledge. https://boards.ngccoin.com/topic/432522-hold-up-your-right-hand-and-repeat-after-me/

The coloring is not US Mint related, so it is not an error. Estimated value = 25-cents.

You forgot to mention --- He worked for Boeing and the "wind whistling" was the sound of his belly button plug blowing out.

Die crack in a spotted common coin. No value.

From this cropped and rotated version, it resembles paint or stain that someone tried to remove from the quarter. Note the stain's absence from some high points but presence in most low spots.

None & Nope

For extra fun at home, put the towel over your head, turn off all the lights except a little one under your towel, and sit in an isolated corner tapping away.

Tap the edge of the holder rapidly and lightly (or hold it in contact with an electric toothbrush). The coin should rotate slightly until it's in a normal position.

Modern coin sculptor/engravers don't seem to pay much attention, except on medals. Properly basining and polishing items such as the baseball commemorative remain a problem for the US Mint. Other countries don't seem to have so much difficulty -- or at least they don't harp on it. Independent sculptors use various textures. including mirrors, for their dramatic and artistic effects, so it's not so much of an overall objection as it once was.

I [say your name] do solemnly swear [or “affirm”] that I shall not watch another U-Tube video about error coins; and further, I shall not claim that a coin run over by a dump truck is a “mint error worth thousands,” so help me God.

I am not aware of any sculptors or medallic artists who favored mirror-like polish on medals or coins. All felt it was cheap and suitable only for tawdry tokens and baubles. From a manufacturing position, it was difficult to give a uniform polish to irregularly curved surfaces, as were normal on medals. Engravers at the Philadelphia Mint were fully aware of this, but also did what they were told and followed tradition. Coin collectors favored polished fields on master and proof coins; this gave the pieces a distinctive appearance that was not available with satin, matte or sandblast surfaces.

Damage and circulation - nothing more.

Very nice example of this variety!

Excellent presentation by Dr. Khachatur Manukyan is a Research Associate Professor at the Nuclear Science Laboratory in the Department of Physics and Astronomy at the University of Notre Dame. Available on the American Philosophical Society. "If you are joining us remotely, you can follow the program through our live stream. If you can not tune in at 6 pm, the stream can be played back at a later time. "

Use a standard oven thermometer and when the temp is a little over120F, turn the oven off and put in your silica gel. (No need to baste, rotate, turn, braise, or broil.)

Please stop looking at U-tube videos about coin errors. Almost all are lies and gross exaggerations. Members here will help you in any way they can. They will not lie to you, although they might occasionally disagree among themselves.

PS: Humidity is nasty stuff for coins. Suggest you rotate packets so your coins are not left unprotected for even a few hours. (At the old New Orleans Mint rust prevention required constant attention. If you are looking for coins made from "rusted dies," NO is the place to look.)

Here's my little contribution to the discussion:

The "traditional" die varieties have only been loosely linked to proof 1921s. There are many more characteristics required to confirm that a coin is a 1921 proof dollar, but the superficial observations are a useful start. None of the TPGs tell collectors how they make a determination. The whole subject needs thorough and objective examination by multiple people.