Canada #650-653 6c-15c Multicolored 1974 Christmas Issue, 11 First Day Covers Featuring Singles, Pairs and Plate Blocks.
11 VF Official Canada Post first day covers of the 1974 Christmas Issue. The covers include a mixture of singles, pairs, plate blocks and a combination FDC. The envelopes are all NF. The covers were canceled in Ottawa. The covers feature a cachet of an angel on the left hand side.
Unitrade values this combination of covers at $17.20, treating singles as the basic covers and the multiples as mint plate blocks. That is generally the correct way to price unaddressed FDC's, as they are essentially pre-cancelled mint items that are still valid for postage.