Chief engineer Charles W. Hubley, left, and his assistant, Constantin "Wally" Woloschak of the Associated Press, pose in New York, Jan. 28, 1969, with prototypes of a new automatic electrolytic WirePhoto receiver. The Photofax is electrolytic, which means it produces the picture by action of electric current on chemicals, which the K300 receiver commonly in use is photographic. (AP Photo/John Duricka)