Banco Nacional Ultramarino, Macau, a group of progressive proofs for 10 patacas, ND (1981-84), comprising of 1 complete proof, 4 proofs showing different layers of print and underprint on the obverse, and 4 showing the different layers of the reverse,, (Pick 59 for type), about uncirculated to uncirculated, a very rare set (9 notes).
Estimate: £500 - £700