Watch List notes:

German States, Frankfurt (Free Imperial City) AV Ducat. 1637. NOMEN: DOMINI: TVRRIS: FORTISSIMA, city arms, date across upper fields, AM and key symbol below / DVCATVS NOVVS: REIPVBL. FRANCO FVRT: in five lines within square triple border with ornaments. KM 85; Friedburg 972; Numista 66324. 3.44g, 22mm, 6h.

Extremely Fine.

From the collection of GK;
Ex Sincona AG, Auction 33, 25 October 2016, lot 2201.