DurfDuck Posted January 27 Share Posted January 27 Is this an example of doubling? Link to comment Share on other sites More sharing options...
Coinbuf Posted January 27 Share Posted January 27 Just the common and worthless strike/machine doubling. Sandon 1 Link to comment Share on other sites More sharing options...
EagleRJO Posted January 27 Share Posted January 27 I don't see any DDRs listed for that quarter and it appears to be shelf-like or "worthless" machine doubling. https://doubleddie.com/144801.html Sandon and DurfDuck 1 1 Link to comment Share on other sites More sharing options...
powermad5000 Posted January 27 Share Posted January 27 I do not see any true doubling at the same height as the design. I see step like doubling on this coin which would be a form of mechanical doubling that is common on such mass produced coins, and is seen as a quality control issue in the production process. Of note to you, true doubling on coins caused in the either the hubbing process or die making process will produce distinct images of all aspects of the design at the same height as the original centered design. Sandon and DurfDuck 1 1 Link to comment Share on other sites More sharing options...
Sandon Posted January 27 Share Posted January 27 (edited) The only form of "doubling" on a coin that may result in the coin having substantial interest to collectors is die doubling, a.k.a. a "doubled die", where the doubling is in the coinage die itself, which results from the "hub" that impresses the image into the working die moving during the impression. In 1996 the mint adopted a "single squeeze" method for producing dies that was supposed to eliminate doubled dies, but some (mostly very minor ones) have been created since that time. In addition to the link to the doubleddie.com page provided by @EagleRJO, see Double Dies vs. Machine Doubling | NGC (ngccoin.com). As stated, your South Carolina quarter exhibits only strike doubling, a.k.a. machine or mechanical doubling. A coin struck from a doubled die generally features crisp, clear doubling with the images at about the same depth, as on this "Redbook" variety 1972 doubled die obverse Lincoln cent: Edited January 27 by Sandon DurfDuck 1 Link to comment Share on other sites More sharing options...
Fenntucky Mike Posted January 27 Share Posted January 27 If I need a scope to see doubling then it just ain't worth looking at in the first place. It was nice to see the close up of the MM in the other thread though. DurfDuck 1 Link to comment Share on other sites More sharing options...
