Oil and Gas
Stamp issued: 2008.05.02
Canadian Photography - 150 years
Stamp issued: 1989.06.23
NHL All-Stars
Stamp issued: 2001.01.18
Royal Canadian Legion
Stamp issued: 1975.11.10
Royal Canadian Legion, 1926-2001
Stamp issued: 2001.11.11
Canadian Air Forces 1924-1999
Stamp issued: 1999.09.04
For more details see the Unitrade Specialized Catalogue of Canadian Stamps, 2018 edition
Total single stamps: 4,107
Total historical events: 5,947
Total topical items: 11,602