Auction 333-341 Western Australia & Great Britain - Day 3

1871: ½ d. pale lilac postal stationery card, a used example, sent from London to Dundee, 2 November 1870, cancelled by the extremely rare experimental Sloper 'Orb & Cross' Perforation Machine cancel, with variety "Inverted Orb & Cross'. To reverse an arrival in black (Nov 3). Very minor soiling, otherwise a very fine card (H&B CP2) and clean crisp punch holes. Rarely available. One of two recorded examples of the 'Inverted Orb' cancel. 
Reference: Illustrated on page 4 of 'Sloper Experimental Cancellations' by Rosemary Smith & Maurice Harp, The Perfin Society.