1723/2 Rosa Americana Halfpenny. Martin 3.1-D.1, W-1226. Rarity-6. Uncrowned Rose. EF Details--Environmental Damage (PCGS). 65.3 grains. PCGS# 905565. NGC ID: 2ASK. <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 Paris collector, via American Heritage Minting, December 1995.