1723/2 Rosa Americana Halfpenny. Martin 3.5-D.1, W-1226. Rarity-6. Uncrowned Rose. Good-4 (PCGS). 65.0 grains. PCGS# 905571. 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 Bob Slobins, via Edelmans, December 2008.