156A (306b) 1885 1' deep blue on blue Q Victoria VARIETY - overprinted "Stamp Duty" SG Type 69 in BLUE, wmkd V over Crown, perf 12½, a great and undercatalogued rarity as only 8 examples are known, with a superb"138" numeral cancel (Hexham, where almost all were used!), ex-Chartwell collection.
