This picture was taken at the 1939 World's Fair. The tube was
called a "flask" design. It was a way to get a larger
and flat screen. The picture tube was in the shape of an iconoscope.
I imaging only the one was made. I did see some reference to
the spare tubes on hand for the fair and there was a spare tube at
the time. (Information courtesy of Jeff Lendaro)
Courtesy of Harry Moore
Caption on this picture: A group of guests at the dedication of the RCA building at the New york World's Fair 1939 inspect the RCA television and broadcast receiver in the rotunda of the building. The ceremony was televised to the RCA building in New York and were witnessed there on identical receivers. Thus, reporters covered their first story by television.
