1765, "ST. PETERSBOVRG", the first type hand stamp, superb strike on entire letter, dated inside October 4th 1765, via Prussia and "MASEYCK" to Bordeaux. An extremely rare usage of this elusive handstamp in the first year of it's introduction and the earliest recorded letter with a Russian handstamp send abroad . Certificate Buchsbayev (2021) (Dobin 0.01a)
