No. 158, Docket 22191. Argued February 7, 1952. Decided May 6, 1952. George J. Bott, General Counsel, David P. Findling, Associate General Counsel, A. Norman Somers, Assistant General Counsel, and Owsley Vose and Willis S. Ryza, Attorneys, National Labor Relations Board, and Paul Kuelthau, all of Washington, D.C., for petitioner. Butter Silverman, New York City, Abner H. Silverman, Emanuel Butter and Alexander C. Russotto, all of New York City, of counsel, for respondent. Before SWAN, Chief Judge