Lot 1942 o
Robison & Co., 1855-56, 1¢ black on blue, margins ample to in at right, certificate notes "unused…slight discoloration at top" which is actually the watery blue cancellation known to have been used by Robison & Co., Fine, an Extremely Rare Example of the Robison & Co. Stamp With Only 8 Recorded Examples, ex Kuphal; with 1998 P.F. certificate.Scott No. 128L1 $4,750.