1778 Machins Mills Halfpenny. Vlack 12-78B, W-7830. Rarity-3. GEORGIVS III, Group III. EF Details--Environmental Damage (PCGS). 99.9 grains. A very sharp piece that appears to have seen little circulation before being buried underground. Dark olive-brown surfaces are dull from roughness and have some planchet flaws at the centers but show no major marks. PCGS# 826953. <strong>To view supplemental information and all items from the Sydney F. Martin Collection, click<a href="https://stacksbowers.com/sydney-f-martin-collection/"target=’_blank’> here.</a></strong> From the Sydney F. Martin Collection. Earlier ex Tom Rinaldo, July 2008.