found: Its Illustrated price list of artists' materials and draughtsmen's supplies, 1887?:t.p. (F. Weber & Co. (successors to Janetzky & Weber) Manufacturers and Importers, 1125 Chestnut Street, Philadelphia)
found: RLIN, Jan. 8, 2001(hdg.: F. Weber & Co.; F. Weber Co.; F. Weber & Co., Ltd.; usage: F. Weber & Co.; F. Weber Co.; F. Weber)
found: NUC pre-56(Weber, F., Co., Inc.)
found: Martin/F. Weber Co. Web site, June 19, 2009(F. Weber and Company; renamed Martin/F. Weber Co. in 1980)
notfound: Tebbel, J. A hist. of book publishing in the U.S.
