Russia C91-C94, C94 perf 12 1/2

Russia C 91-C94, C94 perf K 12 1/2 x 12, L 12 1.2, MNH, $19.20. Michel 1749A, 1760-1762, 1762C. Air Post 1955. Plane over River, Plane and Mountain Steam. Globe and Plane.