ldhair

Back on track.
 

Wrong coin type. WE are on Bust Half dollars. Back on track.
 

Wow. There must be something added to the water supply today. 

BEFORE

 
AFTER

 

What are you talking about? If you are talking about the Barber quarter posted above, it did not follow the coin type or the date of the coin posted above it. I posted a Bust half to get back on track.

Back on track.
 

One of the pleasures of a hobby is sharing information with others. Each of us have differing levels and details of interest, and exchanging information is an excellent means of meeting others through those interests. Over time the emphasis of any hobby evolves as more knowledge is gained and technology advances enable different kinds of communication. Back in the 1920s, amateur astronomy was built around grinding your own telescope mirrors, flats, and building equatorial mounts. Today most telescopes are bought ready-built but hobbyists array them with cooled digital cameras, spectrographs and other devices that would have amazed professionals just a few decades ago. Yet under all the surface changes, the sharing of information and ideas remains central.
Coin collecting retains the same pleasures of sharing information with others at club meetings, message boards, and through publications.
I hope we will all remember that.

A Choice BU one recently sold <$100 on eBay. 
I'm sorry, but garbage like this flat out harms the coin community. Uneducated grandmas buy this stuff for their coin collector grandchild. 

This is one of the clearest US Mint explanations for the cause of thin and tapered coins.
Office of U. S. Assistant Treasurer
New York
 July 1, 1873
 Hon James Pollock,
Superintendent of the Mint
 Sir:
            The enclosed half dollar piece was found in a bag of silver coins of the same denomination received from the Mint. You will notice that it is not of the usual thickness, and this depreciation in weight below the standard is over 20 percent. I am unable to explain as similar pieces have never been noticed before, and take the liberty of returning it for examination, with the request that a similar piece of full weight be returned for it.
            Very Respectfully,
M. S. Hillhouse, Asst Tr. U.S.
 * * * * *
Mint of the United States
Coiner’s Department
Philadelphia
 July 2, 1873
 Hon. James Pollock
Superintendent, U.S. Mint
 Sir:
            The light half dollar returned from the Asst. Treasurer’s Office, New York, is the result of an accident which annoys me very much.
            I account for it by the supposition that the cutter, by neglect, cut toward the point of the strip (rendered thin by the pointing roll for the drawbench) instead of cutting from the point. As a result he cut a planchet from an unadjusted portion of the fillet, and as we are not adjusting silver by hand, it was not discovered in any subsequent operation.
            It is only another evidence that with the greatest care accidents will happen.
            Regretting the occurrence very much,
            I remain Very Truly yours,
            /s/ A. Loudon Snowden, Coiner

1840 SLD.
The NGC Census shows 54 known in all MS grades at NGC.  PCGS Population shows just 35 known in all MS grades at PCGS.  Just 89 coins in all MS grades from BOTH services!!  MS examples exist due to sheer LUCK and happenstance.  Unlike other first-year issues, these specimens were simply not saved. Either from lack of collector interest, the fact that they were too unaffordable to put away or that the former Gobrecht dollar was too similar, so the new design went unnoticed or unappreciated.
It has a VERY LOW mintage of just 61,005, which is in the top third of low mintages for the series.  
Ever since I finished my Walker set; I have been working on Liberty Seated Dollars.  I am attracted to their beauty and RARITY--the same attributes that attracted me to Early Walkers.  I have also been playing around with Morgans (which are actually rather easy to find, and exist in large numbers, just as long as you have the money! ) and Standing Liberty Quarters, too (I am three coins away from completing my One Per Date set of those). 
Liberty Seated Dollars are impossible to find, especially, with nice, clean surfaces, so when I see them; I jump at the opportunity and am not afraid to stretch.  I don't intend to finish this set but will simply buy the keys (and other nice specimens), when they become available and, someday, maybe I'll have a nice Box of Twenty.  
Thanks for looking.  Any thoughts are always welcomed and appreciated.