Watch List notes:

German States, Frankfurt (Free Imperial City) AV Ducat. 1633. NOMEN:DOMINI:TVRRIS:FORTISSIMA:, city arms, date across upper fields, Æ and key symbol below / DVCATVS NOVVS: REIPVBL. FRANCO FVRT: in five lines within square triple border with ornaments. KM 85; Friedburg 972; Numista 66324. 3.42g, 22mm, 12h.

Extremely Fine; clashed dies visible on obverse.

From the collection of GK;
Ex Sincona AG, Auction 43, 23 October 2017, lot 3192.