Auction 250 - 256 Day 3

1955 (Oct): South Australia Stamp Centenary 3½ d. green, Die Proof on white wove paper mounted in sunken card frame (88 x 115 mm.), just eight Die Proofs were prepared for presentation purposes. This is numbered "50" and dated in manuscript "12.9.55" on reverse. With letter (addressee's name excised) from PMG's office dated 18 October 1955. The Proof with stain at top but very rare BW 330DP(1) = $ 3'000.