细节
1971, 1975, 1979 British Philtelic Exhibition range, with 1971 proofs (3); 1975 approved proof sheets of twenty in blue and in green, four impressions in each folded through; 1979 proofs in violet and in orange; also 1973 sheet (29, each overprinted "SPECIMEN" in red)
注意事项
VAT rate of 17.5% is payable on hammer price plus buyer’s premium.