Watch List notes:

Portugal - The Golden Era of the Portuguese Discoveries - Series II, 1989-1990, 100 Escudos a four-coin set Gold Proofs, comprising 100 Escudos Gold 1989 Discovery of the Canary Islands KM#646b, 100 Escudos Gold 1989 Discovery of Madeira KM#647b, 100 Escudos Gold 1989 Discovery of the Azores KM#648b, and 1990 Celestial Navigation KM#649b FDC in the black box of issue with certificate, unlisted by Krause as a set, the first set we have offered

Estimate: 4200-4800 GBP