Great Britain, Scott #MH498 (Deegam: BN2.1.1)(Stanley Gibbons #V4500), used (o), 2021 Machin, Queen Elizabeth II, 2nd class mail with security mailing coding matrix (Two Dimensional Data Matrix Code), image part of the stamp is photogravure printed, matrix code by inkjet printer, printed by Walsall on March 23rd, 2021, from a counter pane, serpentine die cut simulated: perforated 15x14½ around entire stamp with printed simulated perforation between image part and matrix code part, two oval security slits on right and left sides of the image part of the stamp, Deegam Type 2 (wide cut space at the top and bottom of the ovals), oval elliptical syncopated perforation cuts on right and left sides of the stamp midway down from center, simulated syncopated perforation oval printed on the right side of the image part of the stamp, iridescent 'Royal Mail' overlay printing, from a business (B) panel with embedded code MBIL behind the sovereign's head, embedded 2021 year code as M21L to the left of the front edge of the sovereign's crown, one center band phosphorus on image part of the stamp, issued on non-water soluble self adhesive panes, no watermark, Scott and Stanley Gibbons (bright blue), Deegam (light blue), Scott supplemental catalog value: $1.50. Nicely centered, light, black-inked, horizontal, wavy line cancel over the entire stamp, however, the lightness of the cancel leaves the main image mostly clear, good perforations, the 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 for these non-water soluble issued self adhesive stamps; centering, year and source coding, image clear cancel, and mounting warrants a selling price premium. This is not a 'bait-and-switch' offer. The stamp you see will be the stamp 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.