These photos were taken by my dad during the Summer of 1981, at an exhibit of Ray Harryhausen's stop motion figures and drawings (not pictured here, but which can be seen in his various books) at the Museum of Modern Art, in NYC. The show was entitled Ray Harryhausen: Special Effects and ran from May 28–September 1, 1981, coinciding with the Summer release of Clash of the Titans.