Special Mint Sets Public Deposited
Substitute for proof sets, minted 1965-67. Apparently each coin received a single blow from polished dies on planchets cut from burnished strip.
- Breen Encyclopedia
Substitute for proof sets, minted 1965-67. Apparently each coin received a single blow from polished dies on planchets cut from burnished strip.
NNP is 100% non-profit and independent