Lot
1766 
Postage Due, 1959, 7¢ carmine rose & black, dull gum, bottom left corner margin plate no. "35306" block of 4, o.g., never hinged, bright and fresh, F.-V.F., an extremely rare key dull gum issue plate block, with only 5 plate blocks known with this being the second plate 35306LL block to be reported.; with 2009 A.P.S. certificate. Scott No. J95 $3,500.