United States, Scott #C138, used(o) air mail, (2001 in microprint footnote line under stamp, not to be confused with a similar stamp, Scott #C138a with 2005 date)(perforated 11¼x11½), 2001, Scenic American Landscapes Air Mail Series: Acadia National Park in Maine, the sixth stamp in the series; the park includes 45,000 acres of mountains, lakes, forests, and rocky shoreline in Maine; it was the first national park created east of the Mississippi; 60 cents, issued with non-water soluble self-adhesive gum, perforated: 11¼x11½, offset lithography printed by the Banknote Corporation of America (BCA), multicolored, Scott 2025 Catalog Value: 25¢, slightly off-centered (very fine), crisp, quarter circular, double-rimmed, red-inked, probably half counter-clockwise turned, socked-o-the-nose corner cancellation at the top left and well clear of the main image, good perforations, stamp was soaked from the mailing envelope using the Bestine solvent and placed on a piece of black trimmed card stock for an attractive and uniform album appearance; mounting and image clear cancel warrants a selling price premium. This is not a 'bait-and-switch;' the stamp you see will be the one you receive.
Please review my terms of sale. If you are not ordering from the United States, there is a $US1.55 additional postage expense that needs to be added to the price of the stamp. If you are ordering from the United States, there is only a $US0.68 added postage expense. Also, if you make additional purchases from my offerings, they can all go in one mailing at no extra shipping expense for the added purchases. I will send the purchase by US first class mail, since the relatively low value of the stamp does not warrant signature or tracking mail. Hence the buyer assumes risk of loss or non-delivery. I will keep a scan of my mailing to verify that the correct mailing address was used.
By way of reference, I am an American Philatelic Society member (195176) and an American Stamp Dealers Association (ASDA) member. Thank you for looking, and I hope this is the perfect stamp to fill that gap in your collection.