Watch List notes:

Banco Nacional Ultramarino, Portuguese Guinea, obverse and reverse die proofs for a 50 escudos, olive and white, Tristao at right, 500 escudos, violet and white and 1000 escudos, red and white, the last two with Barreto signature, all ND (1973, 1972, 1965),(Pick 44, 46, 43 for types), printers annotations and date low margin, good extremely fine and rare (6).

Estimate: £500 - £700