Manufacturer
A. Compton, Sors, & Webb, Ltd.
Adolph Muller and Sohne
A. Grantham LTD.
Airmaster
Akubra
Albert Kempf (Alkero)
Allerhand & Landy
Art Caps
August Schellenberg
A. Werner & Sohne
Bancroft Military Caps
Bates St. James London
Berkshire Deluxe
Bernard Cap Company
Berndorfer Metallwarenfabrik Arthur Krupp AG
Boinas Elosegui S.A., Tolosa
Briggs Motor Bodies Ltd.
Bruno Zins Deutsche Handwerksarbeit
Carl Halfar Helmfabrik Berlin and Gnesen
CGF Gallet S.A.
Cigna Melchiorre, Fabrica Berretti, Visiere, Soggoli, Torino
Clemens Wagner, Braunsweig
C.L. Seifert, Copenhagen
Compton and Webb (Headress) Ltd.
Confecciones Paco Garcia Efectos Militares
Confezioni Co. Mi.
Costin (Bucharest)
Cury
Daewoo
De Moulin Bros. & Co.
Devichands
Dobbs Fifth Avenue, New York
Dresswell Company
Dunois 39190 Cousance
Eisenhüttenwerk Silesia
Eisen- und Hüttenwerke A.G., Thale
Emaillierwerke A.G., Fulda
E.M.C. Evreux
ERB Safety Inc.
Erel
Eugen Fiebiger, Chur
Failsworth Hats Ltd.
F.C. Bellinger, Fulda
Firestone Tire & Rubber Company
Flight Ace
Flying Hawk MgThaung (Yangon)
Ford and Company
Fort Knox Company
Fox Chase Knitting Mills, Inc.
F.W. Quist, Esslingen
G.A. Hoffmann, Berlin
Gebruder Bing, Nuremberg
Gebrüder Gnüchtel A.G., Lauter
Gentex
Gieve, Matthews, Seagrove, Ltd. (London)
Gueneau
Guéneau & Cie, Paris
Hall and Phillips, Ltd.
H.A.R. Mullick Bros.
Hawkes & Co. Ltd. (Gieves & Hawkes) 1 Savile Row, London
Hawley Products Company
Hermann Jenrich
Hermann Weissenberger & Co.
Ibrahim Dönmez (Istanbul)
Industrial Canvas Production Corporation
Industrias Tello, Zaragoza
INDUYCO S.A., Munich
International Hat Co.
International Molded Plastics
J.M. Prigent
John Bardsley & Sons
John B. Stetson Company
Józef Kozłowski (Łódż)
K. Billenstein, Würzburg
Kingform Cap Company, Inc.
Knox Hat Co., Inc.
Kras Narodni Podnik
La Principal (Tacuba)
Lechia
Leningradsky Metallurgichesky Zavod
Litto-Kappe Kappenfabrik Littomericzky
Ma Mi (Rome)
Marie Slama & John (Vienna)
Marke Standard
Maury & Company, Offenbach
McCord Radiator and Manufacturing Company
Mine Safety Appliances Company
ML Aviation Company
M. M. Shariff (Madras)
Modus
Mohr & Speyer A.G.
Mountcastle Pty. Ltd. (South Brisbane)
Muir Cap & Regalia Limited
Nepal Cap House
N.S. Meyer, Inc.
Oswalt
Patent Pulp Manufacturing Co. Ltd.
Paul Diener, Dresden
Peter Küpper (Peküro)
Post Exchange, Lemoore, California
Pracownia Czapek (Cracow)
Radio Corporation of America (RCA)
Raufoss Ammunisjonfabrikker
Robert Lubstein (EREL)
Sächsische Emaillier- und Stanzwerke, Lauter
Salvador Sanchez (Mexico City)
Sandrik Doln Hamre
Sankey, Wolverhampton
S. Cardia (Rome)
Schlueter Manufacturing Company
Schuberth- Werke, Braunschweig
Sears Saddlery Company
Seth Hosiery (Mohanpura)
Siemens A.G.
Sierra Engineering Co.
Silberhorn-Borne
Simonds Saw Company
Sioux Manufacturing Corporation
Society Brand Hat Co.
St. Clair Rubber Company
The House of Graddock
Thomas & Stone, Hat & Cap Makers
Uniform Shop, Honolulu
Unione Militare
United Millinery
Vereinigte Deutsche Nikelwerke, Schwerte
Vickers Ltd.
Virgilio Tsola e Hijo
Werber Sportswear Co.
Westinghouse Electric and Manufacturing Company
William Scully Ltd.
Willson Safety Products