1952-59年香港政府1元试色样钞,PMG64NET, 有揭薄,罕有;Government of Hong Kong, $1, colour trial specimen, nd (1952-59), control number 2, grey green and multicolour, Queen Elizabeth II at right, SPECIMEN overprinted in red at centre,(Pick 324Acts), PMG 64NET Choice Uncirculated (Thining). Rare