Nos. 270-272, Dockets 30727-30729. Argued January 5, 1967. Decided February 3, 1967. Robert Hillman, Washington, D.C. (Arnold Ordman, Gen. Counsel, Dominick L. Manoli, Associate Gen., Counsel, Marcel Mallet-Prevost, Asst. Gen. Counsel, Herman M. Levy, Washington, D.C., Atty.), for petitioner. David Kramer, New York City (Ernest Fleischman and Delson Gordon, New York City, on the brief), for respondent, General Building Laborers' Local 66. Before LUMBARD, Chief Judge, and FRIENDLY and HAYS, Circuit