It resembled our modern I. W. W. in some important particulars. "It believes," says one of the members, "that all employees working for one company, engaged in any one industry, should be managed through ... one authoritative head; that all men employed by one employer, in any one industry [should] be answerable to the employer through one and the same organization...."[52] The approval of its general Executive Board is required before any member local can call a strike.[53] An interchangeable or universal transfer system is provided, as it was later by the I. W. W.[54] The American Labor Union was an industrial organization of more decided political character and sympathies than is the I. W. W. It was, however, decidedly socialistic in its ultimate aim. It seemed to mark the climax of development of industrial unionism of that (political-socialist) type. It will be evident in the following pages that in 1905 began a sharp swing under the I. W. W. banner from socialist industrial unionism to anarcho-syndicalist industrial unionism. A good many of the leaders of the American Labor Union were members of the Socialist party. "Believing that the time has come," runs the A. L. U. _Preamble_, "for undivided, independent, working-class political action, we hereby declare in favor of international Socialism and adopt the platform of the Socialist Party of America as the political platform and program of the American Labor Union."[55] Although it endorsed socialism, the A. L. U., unlike the Socialist Trade and Labor Alliance, admitted workingmen of any political views whatsoever, but resembled the latter organization in its opposition to the American Federation of Labor and its desire to build up a revolutionary labor movement. The economic organization of the proletariat [declares the official organ of the A. L. U.] is the heart and soul of the socialist movement, of which the political party is simply the public expression at the ballot box. The purpose of industrial unionism is to organize the working class in approximately the same departments of production as those which will obtain in the coöperative commonwealth, so that, if the workers should lose their franchise, they would still possess an economic organization intelligently trained to take over and collectively administer the tools of industry and the sources of wealth for themselves.[56]