Standard stamp catalogue, 25th thousand.
=New York: The J. W. Scott Co. [189-] (2), 212pp., illus., 12o.
Scott, J. W.2239a.127
Standard stamp catalogue ... New York: The J. W. Scott Co. [1891] (2), 210pp., illus., 8o.
Seltz, C. M.2237.5
The postage stamp collector's hand-book. A descriptive catalogue of all postage stamps issued from 1840 to the present time. Boston: C. M. Seltz, 1867 (3), 20pp., 16o.
Senf, Richard,2237.113
Handbuch sämtlicher Postmarken, Briefumschläge und Streifbänder. [7. Auflage nebst einem Nachtrag.]
=Leipzig: Senf [1891, 96] xvi., 632, 154pp [Dr. Moschkau's Handbuch für Postwertzeichen-Sammler; band 1] 8o.