A while back I posted on a thread- forgot which one- that each of the 4 mintmarks (reverse dies) of the 1916-d dime is paired with a specific rotation of the reverse. This could be useful in determining if a coin is fake, simply by observing the position of the fasces relative to vertical. The coin just needs to be in some sort of holder to provide a reference frame for judging the rotation. The four mintmarks for the 1916-d dime are: LINK edited - I hate to do this but posting copyrightred material on CT is not permitted, so I changed it to a link instead of an image the small image in the center is a counterfeit mm, I was not able to remove it from the image. mintmark 1 is upper left; mm 2 is lower left; mm 3 is upper right; 4 is lower right. pretend that the fasces are aligned with the hour hand of a clock. For mm1, the rotation is ccw to 11:45; for mm2--cw to 1:00; mm3-cw 12:45; mm4-- cw 12:15. (ccw=counterclockwise,cw=clockwise) I hope this is of some help.
I can see that mint marks 2 & 3 are D/D appearing, but I also notice that mm #4 appears to have a widely separated repunch to the NE ? Is it? Very interesting as usual. Also I remember from many years ago, I had a mirrored protractor device the coin could be put on, and the mirror reflected the opposite side, and you could accurately see the degree and direction of rotation. I can't find it Jim
