Azerbaijan – Transcaucasian Socialist Federative Soviet Republic: 1923 (12 December). Registered cover to USA franked on reverse with 4k and a pair of 18k of new values pictorial issue tied by KHANKENDY ELISAV “a” datestamps, 14.01 and 15.01 arrival cds’s. Very scarce occasional post office cancel. No document recorded by Dr. Ceresa but recorded by Ashford and Voikhanski.
