Lot
957 
1934, 1¢ Yosemite National Park, vertical pair, imperf horizontally, Positions 36-37, 46-47, bottom margin block of 4 with plate number "21248", o.g., never hinged, bright color, tiny filing holes in bottom margin, fresh and F.-V.F., only 16 pairs or strips issued; signed S.A. (Spencer Anderson) on reverse. Scott No. 740a $6,000.
THE ONLY RECORDED IMPERF VERTICALLY BLOCK WITH PLATE NUMBER.
Realized: $5,000