1881: Quetzal 1 c. black and green, used on cover locally, tied by black cancel, dated 29 June 1892, the latest recorded use, with fine octagonal "Postalocal / Guatemala" in violet alongside. An explanation in manuscript on the reverse explains it was found in the PO Box after 7 years. A fascinating example, some stains and tears, presumably from it's time in the post box, rare, most probably unique.