1919 (14 Nov) registered cover franked with pair of 25k Imperial Arms, tied by Cyrillic "Field Post Office No.55" cds, with corresponding handstruck Registry cachet, used during the Russian Civil War to Kostroma, roughly opened at right, ex-Casey (Image)

Est.US$150

1919 (20 Nov) registered cover franked on back with imperf. block of 4x1r Imperial Arms, tied by Cherkasskoe, Penza departure pmks, sent to a soldier serving with the 22nd military hospital transport, 11th Rifle Division, 3rd Brigade, with Cyrillic "Field Post Office No.41" arrival one month later, showing on front "Service Enquiry Bureau" handstamp and redirected to Field Post Office No.31, arriving at Head FPO Smolensk, fine Civil War usage, ex-Casey (Image)

Est.US$100