CANADA 1953 NATIONAL WILDLIFE WEEK FIRST DAY COVERS, OTTAWA
2c Polar Bear, 3c Moose and 4c Bighorn Sheep blocks x 4 on individual Michael Sanders covers each with slogan and OTTAWA, ONTARIO, CANADA circular cancel dated APR 1 1953, the first day of issue. Very scarce assembly. Minor ageing otherwise fine. SG447-449; SC322-324
