Lot   Cat.#
1046  3186
1966, Grigory (Sergo) Ordzhonikidze, die proof of 4k in indigo, printed in very light blue toned paper, size 62x85mm, officially signed at the bottom, flawless quality, VF, this die proof is much more rare then rather common plate proof, V. Liapine certificate stated "...the first example of large format proof known to me"

Stamp Auction #81, March 21, 2019. Raritan Stamp, Inc