A catalogue for advanced collectors of postage stamps, stamped envelopes and wrappers;
A philatelic catalogue of postage stamps, stamped envelopes and wrappers, compiled by Henry Collin and Henry L. Calman and published in New York by the Scott Stamp and Coin Company in 1890 for advanced collectors. Its pictures are plain line drawings of envelope cut-out shapes with numbered folds, plus engraved stamp-edge and fold details, useful to designers studying envelope construction and die-cut patterns.
