This is what we already knew:
Tomart's Price Guide to Action Figure Collectables
INDIANA JONES AND THE TEMPLE OF DOOM (LJN)
This was a very short-lived set. Figures of Indiana Jones, Mola Ram, and the Giant Thuggee are known to exist. Short Round and Willie Scott are advertised on the back of the blister cards, but the figures were never produced. A prototype mine-car Impossibles set with molded-in figures was also made.
, Carol Markowski, Bill Sikora & T.N. Tumbusch, 1992.