Seville, Spain (Castile and Leon), gold dobla, Pedro I ("the Cruel," 1350-69), NGC MS 64, finest known in NGC census. Cay-1276. Choice inner details and fully readable legends with king's name on both sides (a mix of Cayon-3a obverse and Cayon-3 reverse), everything crisp and well defined with a hint of luster as well, just a couple light marks on obverse. NGC #4841409-002.
Estimate: $5000-7500