Nos. 446, 1034, Dockets 74-2044, 74-2230. Argued June 5, 1975. Decided July 21, 1975. Certiorari Denied January 12, 1976. H. Howard Ostrin, New York City (Cohn, Glickstein, Lurie, Ostrin Lubell, New York City), and Kane Koons, Washington, D. C., of counsel, for petitioners. Frederick D. Braid, Mineola, N.Y. (Rains, Pogrebin Scher, Bertrand B. Pogrebin, Mineola, N.Y., of counsel), for intervenor Rigby. Bernard Yaker, New York City, George E. Ashley and William P. Witman, New York City, of counsel