In 1976, TWA celebrated their 50th year in service by issuing
a set of seven prints featuring six of their fleet mainstays.

There were 500 numbered sets available. This set is number 418,
with each print being numbered the same, "418/500", and hand-signed by
the artist.

The eBay link is...
http://cgi.ebay.com/ws/eBayISAPI.dll...tem=6591190359

....and images of the prints are located there also.

The prints include the following:

Lockheed Constellation Super G
Lockheed 1011
Douglas DC-3
Northrop Alpha
Ford Tri-Motor
Boeing 747
Boeing 747 Cutaway View

There is also a "Fleet Comparison" data sheet printed on the
same-size paper that's unsigned/unnumbered.

The prints are 12" x 18" overall, and the actual image area
is 7.5" x 14". The paper itself is high-quality stock
suitable for framing. The prints are contained in the
original flap envelope with TWA logo and 50th Anniversary
graphic.