Paper, Perforation and Watermark Trials.
Nineteen items, virtually all in pairs to blocks of ten, all without any printing whatsoever,
nearly all original gum with nearly all Mint N.H., incl. blocks of six and ten perforated 12 (presumably for Large Bank Note Series), blocks of four (two), six and twelve watermarked double-line USPS, Rotary Press Perf 10 corner block of four, Rotary Press Perf 11 x 10-1/2 horizontal block of eight, coil strip of four, "Biscuit Grill" on blank paper (79E) and five singles (four with side selvage) and one horizontal pair on different color gummed and laid papers (65TC-E), also incl. three Test Coil pairs (one imperf., other two perforated), Violet or Purple, presumably for the 1954 Liberty series, couple creases, virtually all Very Fine, a rare and interesting lot of high desirability for the specialist in stamp production
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