Why the 1928 $100 Gold Certificate Is So Rare — And Why It’s Illegal to Own in Circulation July 16, 2025July 16, 2025Debbi Issued in 1928, the $100 gold certificate is part of the first small-size gold certificates, replacing large-size notes. These carried a distinctive gold treasury seal and were redeemable for gold. Series 1928 included $10, $20, Continue reading