The Laurence Pope Collection of Portuguese Colonial Banknotes - Part One
Banco de Angola, proof 20 Escudos, 10 June 1973, no signatures or serial numbers, along with stage proofs (3) for the reverse underprint of the same note, one complete, and one each for the two layers, uncirculated and very rare (4 notes)
TBB B428as, Pick 104s £150-£200