United States of America 1849 - Letter, railroad tied with red Waffer embossing - Scott 1

#1 America's first stamp on cover, Baltimore Rail Road straight line marking and a circular 5 in red, stamp with 3 large margins and 1 normal margin.

stamp is fixed with red wax wafer with embossing, extremely rare usage of what is believed to be the very first grill

wax was used because some people did not, yet, trust the gum on stamps en used wax to additionally fix the stamp to its cover to prevent it from getting loose in transit

due to the wax some, to be expected, small irregularities to the stamp, partly by the embossing and partly due to the wax under the stamp, but one of the few recorded Scott #1s affixed to a cover with red wax
with original 2021 Philatelic Foundation certificate: "Genuine usage, the stamp with a horizontal crease"

Catalogue value Scott 2021: stamp on cover $450, Baltimore RR straight line adds $500, so a total of $950 + the bonus for the wax wafer with affixed with embossing

please take a close look at the pictures to form your own opinion