Lot 20328 – 1905 Insured cover used to send 300 roubles to Cou

1905 Insured cover used to send 300 roubles to Courland Province (Baltic States), franked on reverse 3k, 4k (strip of 3 + single) and 50k Arms issue, cancelled in violet No. 4 FIELD POST OFFICE/PRIAMUR DISTRICT 18 IX 1905. Wax seals alongside with the same inscription. Blue cachet of 2nd NERCHINSK COSSACK REGIMENT. Blue bordered registration label reads: RESERVE FIELD POST OFFICE No. 4 with NINGUTA added by hand. Vindava arrival backstamp 22 X 1905. This cover established the location of No. 4 FPO at Ninguta, Manchuria. Illustrated K.Adler “British Journal of Russian Philately” 16 (1954), p. 471.