1918, 50k. in combination with 10k. on 3k. and 50k. on 2k. imperforated all tied by cds. "POCZTA POLOWA I. POL. KORP 4" to value declared cover adressed to the First Lieutenant W. Janaewski, chief physician at the 1st Rifle Division from Lieutenant General Stanislaw Gurbski, MD., reverse with two large intact wax seals "PRZESYLKA PIENIEZNA 1 POCZTA POLOWA", a scarce and attractive cover, signed. Petriuk PZF with certificate (2022)
