Sapyx ✭✭✭✭✭

First coin: guessing it's a counterfeit that someone soaked in acid to try to hide the counterfeit tells, and/or make it look like a thin planchet. Or at least that's what the TPGs are assu… (View Post)

There was a company here in Australia a few years ago advocating use of their spray-on anti-theft microdots for coins. They came and made a presentation to my coin club about it. The theory was you s… (View Post)

The design is standard for 8 reales coins struck in Potosi in 1690. Specifically, the "Royal" presentation pieces, which are much scarcer than the "cob" types struck in bulk. Numi… (View Post)

Despite the name reading "ANTONINVS", this is actually a brass sestertius of Marcus Aurelius. Roman emperors liked to expand their already-grandiose titles by adding the names of territorie… (View Post)

Privy marks are important for variety classification. A person would leave the mint's employ at random times throughout the year, meaning that there are many "transition years" where t… (View Post)