A45 (Z52) 1879-80 38¢ bright purple Q Victoria of Mauritius, wmkd CC, perf 14, used in Seychelles with "B 64" cancel, in 50 years this is only the second example we have seen (and we were vigorously out-bid for that first one--however decades later we have acquired this example), monumentally undercatalogued--to say the least, trace of red mark at bottom, an outstanding rarity of this issue!