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

1876: ½ d. rose, plate 13, in combination with 1880 ½ d. pale green, fault top, used on a printed Erasmus Smith school fees letter sheet, sent locally within Dublin, Ireland, dated 30 October 1889, tied by a '186' Dublin duplex in black. Inside the letter sheet has a 1 d. lilac revenue stamp affixed and cancelled by a manuscript pen cancel. Soiled. A unique combination of ½ d. values.
Reference: Great Britain Victorian Mixed Franking Covers, by Ray Simpson & Karl Louis, illustrated on pg. 181 (fig. 273). Listed as a Gold Standard cover.