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VERY FINE APPEARANCE. AN EXTREMELY RARE UNUSED PAIR OF THE 1851-52 EXPERIMENTAL ORANGE BROWN.
Accompanied by a 1988 letter from Dr. Amonette confirming the color. Listed but unpriced in Scott as unused ($800.00 as two used singles). The catalog value for a used example of Experimental Orange Brown is 26 times the normal Dull Red (Image)
FINE-VERY FINE APPEARANCE. AN EXTREMELY RARE UNUSED BLOCK OF THE PLATE 1 LATE EXPERIMENTAL ORANGE BROWN SHADE.
A review using Power Search found only a single unused example of this shade, from the 1993 Piller sale. This is the only block, either used or unused, that we have encountered.
Accompanied by a 1987 letter and note from Dr. Amonette confirming the color and position and stating "your block of Exp. OB is unique as far as I am concerned." Unlisted in Scott Catalogue as a block, listed but unpriced as unused single (Image)