German States-Frankfurt am Main, Kreuzer, 1773, Frankfurt Mint, Bunsen & Neumeister Mintmasters FRANCFURT Crowned eagle facing, head left, wings spread 1 | K / B | N across fields (No legend) City view, radiant Trinity above, date below Milled edge 14mm, 0.56g, Billon SilverMintage: UnknownKM 253; J&F 880