Canada #566, 630, 633 8c Multicoloured Various Designs 1973-1974 Commemmoratives, 3 Kaulbach Island Carrier Service First Day Covers Franked With Singles, With Block of Local Stamps on Back Cachets, MF and HF Paper, Cat. Value $2.55

A group of 3 Kaulbach Island Carrier Service First Day Covers franked with singles. Generally all VF. The paper fluorescence of the stamps MF for the Winnipeg Centennial and Summer Sports issue, and HF for the Algonkian Artifacts stamp. One cover is unaddressed and two are addressed neatly. Each has a block of 4 of the Kaulbach Island local stamps from three different issues on the back, tied with first day cancels. Note the cancel dates are NOT the day of issue of the Canadian stamps, but rather of the local stamps. Unitrade catalogue value for the basic covers is $2.55. Our estimate of the value after adding appropriate premiums is $15.

A note about how we calculated Dickinson Catalogue values in conjunction with Unitrade. Dickinson does not list paper varieties on FDC's, nor do they price anything other than a single. FDC's are typically regarded as being similar to mint stamps in the sense that if they are unaddressed, they are still valid for postage. So, that is why the FDC price in Unitrade is typically slightly more than a mint single. That being the case, what we have done where we have a better paper variety on an FDC is we have taken the Dickinson catalogue value and added the mint value of the paper variety to the FDC price. If there is a pair or a block, we have added the Unitrade value of the extra stamps to the Dickinson cover price.