Great Britain, Scott #MH459 (Deegam 1.58.2)(Stanley Gibbons #U3744), used(o), 2016 Machin: Queen Elizabeth II, Issued in celebration of Queen Elizabeth II becoming the longest-reigning British monarch, 1st class mail, DeLaRue gravure, issued: February 13, 2016, serpentine die cut simulated perforations: 14¾x14¼, from a booklet, non-water soluble self-adhsive gum, twin elliptical syncopated perforation indents left and right down from the center, twin inserted security slits on the stamp at lower left and right of center with narrow cuts at top and bottom of the ovals (Deegam Type 2), two right and left bands phosphorus, wavy iridescent repeated overlay: 'LONG TO REIGN OVER US', no source code, embedded 2016 year code substituted in the word OVER as 'O16R' just at the right of the left security slit, Scott (lilac), Deegam (amethyst purple), Stanley Gibbons (bright lilac), Scott 2022 catalog value: $5.00. Nicely centered (superb), black-inked wavy line cancellation at the right half of the stamp and just behind the central image with a stray cancel mark at the top left corner, good perforations, stamp was removed from its mailing envelope using the Bestine solvent and placed on a piece of black card stock for an attractive and uniform album appearance; cengering, mounting, year source coding and largely image clear cancel warrants a selling price premium. This is not a 'bait-and-switch' offer. 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. If not satisfied, return the stamp to me at your own expense, and I will refund the cost, but not my postage to you. If the stamp is not as described, I will refund the cost and reimburse you for postage both ways.
By way of reference, I am an American Philatelic Society (APS) 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.