Bank of Ethiopia, a selection of die proofs comprising obverse 2-Thaler, ND (1933), blue and white (P.6), obverse die proofs in black and white of the 10-, 50-, 100-, and 500-Thalers, ND (1932), (P.8, 9, 10, 11), various annotations and date '4/3/32', extremely fine, rare (5)