Nos. 12511, 12585. Argued February 3, 1956. Decided May 3, 1956. Mr. Bernard Dunau, Washington, D.C., with whom Mr. Morris P. Glushien, New York City, was on the brief, for petitioner in case No. 12511. Mr. Samuel H. Jaffee, Washington, D.C., also entered an appearance for petitioner in No. 12511. Mr. Marcel Mallet-Prevost, Asst. General Counsel, National Labor Relations Board, for respondent in case No. 12511, and petitioner in case No. 12585. Mr. Robert G. Johnson, Attorney, National Labor Relations