A catalogue for advanced collectors of postage stamps, stamped envelopes and wrappers; (1890)
Collin, Henry, Calman, Henry L, Scott Stamp and Coin Company, Inc · New York : The Scott Stamp and Coin Co., Limited · leaf 37
he previous issue. New varieties are as follows : WATERMARK A4. Lergth of “p O d” averages 52 mm., and the cross lines 31 mm. The positions vary a little, but the moncgiam telow usually las the “P” in a line under the “s” of the one above, and is about 13 mm. below. This variety can be recognized… … A6. A8.’ WATERMARK A6. Length of “p o d” averages 45 mm., and the cross lines 31 mm. apart. This watermark is the opposite of Wm’k. A5, the position of the lower monograms being to the right of those above. The “p” is usually just clear of the “s,” and sometimes just under it. Monograms further…
Postage stamps · Covers (Philately)
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
