Watch List notes:

(x) Portugal, Banco de Portugal, 20 escudos, specimen/proof, without date (1929-1940) or serial numbers, red-violet and multicolour, M. d'Alberquerque at left, ornate building at right, handwritten 'APPROVADO 29-4-1930', and this validated by two hand-signed signatures, likely from bank officials,(Pick 143pr), in PCGS holder 58 Choice About New, enclosed with the original envelope from the printer. Extremely rare.

Estimate: £250 - £300