Auction #93 Worldwide Air Post stamps and postal history, Zeppelin Flight items, philatelic rarities of the World

1913, Tercentenary of the Romanov Dynasty, Nicholas II, stage proof of 5r in reddish brown, unfinished design without engraved hatching on leaves of the ornament, with thin corners close to ''5 roubles'' inscription, but with black ink correction shadows at left and right, printed on wove paper, centered to the bottom, size 81x98mm, marked in pencil with ''4'' at top right, no gum as produced, VF and very rare, Est. $1,500-$1,800