messydesk ✭✭✭✭✭

Starting with AI-supplied number of 450,000,000,000 Lincoln cents ever made. Assuming they're stacked optimally (laid out in layers of hexagonal patterns), each would occupy 0.0292 cubic inches,… (View Post)

The variation in the appearance of the many 80/79 overdates exists largely because of the quality of the repair of the die (i.e., filling in the 79) before re-dating with an 1880 punch. There are man… (View Post)

The other missing data point here is how much these coins sold for in new holders. Obviously, we can't know this unless the coins are reholdered, restickered, and then sold, preferably one after… (View Post)

I would posit that it's not the application of these stickers that is ruining the hologram, but the improper removal of the stickers. (View Post)

The adhesive is usually soluble in oil. I get them off with a soak in paraffin lamp oil. If the stickers are plain paper, it will soak through the surface. If they're glossy paper, scuff it firs… (View Post)