No. 20081. June 7, 1963. Marcel Mallet-Prevost, Asst. Gen. Counsel, Dominick L. Manoli, Associate Gen. Counsel, Hans J. Lehmann, Atty., N.L.R.B., Washington, D.C., for petitioner. L. Robert Frank, Tampa, Fla., for respondent. Before RIVES, LEWIS, and BELL, Circuit Judges. Of the Tenth Circuit, sitting by designation. GRIFFIN B. BELL, Circuit Judge. This case presents a novel question: May an employer with no discriminatory purpose prohibit the wearing of pins indicating union membership or status