1975-D doubled die cent, 2018 Block Island quarters, 2019 palladium reverse proof, 2019-D cent, Central States Numismatic Society, CSNS exhibits, Letters to the editor, Medals, Read Letters to the Editor, U.S. Mint Letters to the Editor (March 19, 2019) March 1, 2019 Numismatic News Staff Leave a comment Mint reused 1968 envelope I have attached a photo (at right) from a recent purchase of a 1969 U.S. Mint Set Continue reading on Numismatic News