The cover of a booklet containing the charter (constitution) and the bylaws of the Cooperative union.  This copy apparently belonged to a carman named Shaw.  Note the organization's seal, with its prominent “PUBLIC SERVICE” in the center.  Membership eligibility included all “motormen, conductors, bus operators, pitmen and pitmen helpers, and car washers” in the street railway department of NOPSI.  Most of the provisions of this document are quite ordinary for such an organization, except for Article XIV of the charter: “This Association shall not affiliate with any other association of employees or with any other trades union, whether local or national.”