Live Bidding Auction #91

1913, Nicholas I, imperforated proof of 15k yellow brown (issued color) in sheetlet of ten (5x2), printed on chalk-surfaced paper, Russian letters ''RZ'' (Rihards Zarriņš - graphic designer) at bottom right, very fresh and nice, no gum as produced, very lightly hinged at top and bottom, no thins or other defects, VF and extremely rare, ex-M. Liphschutz, G. Denisenko, according to Robson Lowe only three such sheetlets were printed, we sold one of them with minor faults at our Auction #59 (December 2013) for $10,350 including commission, Est. $10,000-$12,000