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<p>[QUOTE=&quot;Conder101, post: 2880145, member: 66&quot;]No only the one die is 1800/1798, the rest are 1800/179.&nbsp; This can be seen on very high grade coins, only the one die shows any traces of an 8 in the final 0.</p><p><br /></p><p>Jon Lusk had an excellent program for doing overlays called Numistudy.&nbsp; You could take images of two coins, enlarge them and select the same three points on each image (You enlarged the images to make sure the points you selected on each coin were as close to being in the exact same place as possible).&nbsp; Then the program would automatically scale both images to the same size and rotation, then overlay them so the three points of each corresponded.&nbsp; Then you could vary the opacity of the top image to see if there was any variance of positioning of features.&nbsp; It was a great way to confirm varieties.&nbsp; It had another feature were you would select four predetermined points on an image of your coin and it would calculate the ratio of the two lines thus established and compare it to the ratios of known varieties to provide a list of the most likely varieties your coin could be.&nbsp; I have a copy of the program.&nbsp; It ran on my old Windows 98 machine which no longer functions.&nbsp; It was supposed to work on my XP machine but I could never get it to install, neither could Jon.&nbsp; I have been told that it will work on Windows 10 as well, and I still have the program, but I have misplaced the USB dongle the program requires to run.</p><p><br /></p><p>I haven&#039;t talked to Jon for awhile so I don&#039;t know if the program is still available. (Or if I could get a replacement dongle)[/QUOTE]</p><p><br /></p>

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