6c black on pale orange 'Exposition' postal stationery envelope (H&G B10) unaddressed but used with fine strike of octagonal CORREOS CUYOTENANGO cds dated 14 DIC 1897. There is evidence on the reverse that this envelope was likely used as a 'paste up' (attached to a large envelope or parcel by the gummed flap) with a partial receiving mark showing on the tip of the flap. A scarce origination.