5d Deep Dark Brown left marginal example with large part OG. Shade not catalogued in comb perf, and while not reaching the famous 'Black-brown' in colour nevertheless a rare shade. With manuscript endorsement in selvedge '11.11.18' which presumably represents the date of purchase.
5d Bright Chestnut Rough Paper Single Line Perf 14 punctured 'OS' on 1921 (12 Aug) OHMS registered cover from Perth to Northam, black and red on white registration label, 'NOT KNOWN BY LETTER CARRIER' and 'UNCLAIMED' within parallel lines, backstamps of Perth and Northam. BW 124, cat AU$1,500
5d Orange-brown Comb Perf variety 'White Spot Between R and A of AUSTRALIA' (1L38, BW 123n) scarce solo usage on 1923 (23 Apr) neat 'Aerial Mail' cover (minor tear) from Port Hedland to Perth