DLauben

Hi Dom, I concur with Stephfie55's method. I do the same thing. To add to what's been said, for an assortment of stamps that each cost a different amount, I use the stamp's CV value as a baseline, and multiply that amount by a scaling factor. Call the scaling factor SF. SF is the amount you paid for the lot (X) divided by the sum of the CV's for the purchased stamps. Ideally the SF will be less than 1.0 (otherwise you paid more than market price). This method gives a reasonable estimate of each stamp's purchase price. Hope this helps, Dave