No. 76-3420. October 28, 1977. Elliott Moore, Deputy Assoc. Counsel, N.L.R.B., Washington, D.C., Michael F. Messitte, N.L.R.B., Washington, D.C., for petitioner. Russell Specter and Laura Stevens, Neyhart, Anderson Freitas, Bricklayers Local No. 7, Bricklayers, Masons and Plasterers' Intern. Union of America, AFL-CIO, San Francisco, Cal., for respondent. Petition to Review a Decision of the National Labor Relations Board. Before TRASK, WALLACE and ANDERSON, Circuit Judges. PER CURIAM: The issue on