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Get Market Data for [United States 1 (8)]
10¢ Black (2), Position 23L, striking and enigmatic doubling of design at top and in parts of bottom, accomplished by expertly painting in the double transfer, red grid cancel, small thin spot, the famous (or infamous) "Knapp Shift", which roiled experts for decades before being definitively determined a fake, numerous Chronicle articles have been written on this over the years and we will not attempt to recreate all the arguments here, the most recent and best are Wade E. Saadi's and Philip Wall's articles in Chronicle No. 176, ex Saadi, 1996 P.F. certificate no longer accompanies (Image)
Get Market Data for [United States 2 var.]
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