Hemispherical ✭✭✭✭✭

Was going to say strikethrough and possible die polishing, but... hmmm... Edit. Maybe. A strikethrough should go over any reliefs. Those line appear to be under. So maybe a gouge on the die and an at… (View Post)

Nickel http://www.error-ref.com/die-deterioration-doubling/ (View Post)

Congrats on Five @winesteven! (View Post)

Thanks for showing and explaining the process @cardinal. One big circle. Made, separated, and rejoined. (View Post)

In addition to @jmlanzaf post they are sometimes used for magic tricks. (View Post)