Code Numbers of Unions

Al American Federation of Labor A2 United Automobile, Aircraft and Agricultural Imple- ment Workers of America Bl Bricklayers, Masons and Plasterers International Union of America B2 Boot and Shoe Workers' Union B3 Journeymen Barbers'1, Hairdressers' and Cosmetologists' International Union of America , B4 International Brotherhood of Bookbinders Cl Cigar Makers' International Union of America C2 United Brotherhood of Carpenters and Joiners of Amer- ica C3 Congress of Industrial Organizations C4 Retail Clerks International Protective Association C5 Amalgamated Clothing Workers of America C6 Order of Railway Conductors of America El National Marine Engineers' Beneficial Association E2 International Brotherhood of Electrical Workers of Amer- ica E2a International Brotherhood of Electrical Workers of Amer- ica (Seceded Faction) E3 Brotherhood of Locomotive Engineers E4 United Electrical, Radio and Machine Workers of America Fl Brotherhood of Locomotive Firemen and Enginemen F2 National Federation of Federal Employees F3 American Flint Glass Workers Union of North America Gl * United Garment Workers of America G2 International Ladies' Garment Workers' Union Kl Knights of Labor LI International Longshoremen's Association L2 National Association of Letter Carriers L3 International Longshoremen's and Warehousemen's Union Ml Brotherhood of Maintenance of Way Employes M2 International Union of Mine, Mill and Smelter Workers M3 American Federation of Musicians M4 Industrial Union of Marine and Shipbuilding Workers of America MS International Association of Machinists lii CODE NUMBERS

M6 United Mine Workers of America Ol Oil Workers' International Union PI United National Association of Post Office Clerks P2 International Brotherhood of Paper Makers P3 International Printing Pressmen and Assistant's Union of North America P4 Pattern Makers' League of North America P5 International Brotherhood of Pulp, Sulphite and Paper Mill Workers w Rl Brotherhood of Railway and Steamship Clerks, Freight ^ Handlers, Express and Station Employees SI International Seamen's Union of America Sla The Seaman (Oct 1921-Jun 1922) ~~ S2 Switchmen's Union of North America 53 United Steelworkers of America 54 American Federation of State, County and Municipal 1 Employees Tl International Brotherhood of Teamsters, Chauffeurs, Warehousemen and Helpers of America Tla Teamsters' National Union T2 Brotherhood of Railroad T3 United Textile Workers of America T4 American Federation of Teachers T5 Textile Workers Union of America T6 International Typographical Union Wl Industrial Workers of the World

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