Canadian Stamps and Postal History
Perforations on the 1967-1973 Centennial Issue
This post examines the intricacies of the perforations on the stamps of the 1967-1973 Centennial Issue, including the difference between line and comb perforations, and the different gauges that can...
Perforations on the 1967-1973 Centennial Issue
This post examines the intricacies of the perforations on the stamps of the 1967-1973 Centennial Issue, including the difference between line and comb perforations, and the different gauges that can...