Image credits

Coin photography: PCGS / Collectors Universe. Retrieved September 18, 2026. Copyright remains with the source; no open license is asserted.

• 1900 Philadelphia Morgan dollar, PCGS MS68 — PCGS source page · Source photograph
• 1900-O Morgan dollar, PCGS MS67+ — PCGS source page · Source photograph
• 1900-S Morgan dollar, PCGS MS67 — PCGS source page · Source photograph
• 1900-O/CC Morgan dollar, PCGS MS67+ — PCGS source page · Source photograph
• O/CC mint-mark diagnostic photograph — PCGS source page · Source photograph
• 1900 PCGS XF40, certification 10391220 — GreatCollections, original source.
• 1900 PCGS AU50, certification 27316169 — GreatCollections, original source.
• 1900-S NGC AU Details Cleaned, certification 2182080-007, lot 99281 — Stack’s Bowers Galleries, original source.
• HeriBase identification result and specifications — original screenshots IMG_1095.PNG and IMG_1096.PNG supplied by the article editor.