I have
inherited an album of
US Stamped Envelopes which includes different size envelopes. I have referenced Scott 2010 Specialized Catalogue of U. S. Stamps & Covers to determine values but the various envelope sizes are not indicated in the pricing listings. Is there a more thorough source for pricing stamped envelopes? Does envelope size affect values all else being equal? Any help is much appreciated.
Thanks,
Dan Carazo