No. 6894. Argued January 8, 1955. Decided February 26, 1955. Sidney J. Barban and Earle K. Shawe, Baltimore, Md., for petitioner. Norton J. Come, Atty., N.L.R.B., Washington, D.C. (David P. Findling, Associate Gen. Counsel, Marcel Mallet-Prevost, Asst. Gen. Counsel, and Rosanna A. Blake, Atty. N.L.R.B., Washington, D.C., on brief), for respondent. Before PARKER, Chief Judge, and SOPER and DOBIE, Circuit Judges. PARKER, Chief Judge. This is a petition to review and set aside a decision of the National