Kevin, there was a plastic tab over the 2 prongs you put your fingers on the glass and squeezed the bar toward your fingers with your thumb. The "catch" for the door was metal as well and the prongs/with the plastic bar clicked as it closed over the metal catch. All of these parts were metal in later years the "catch" became plastic especially on the later machines. I do not know if it was because plastic was cheaper or because of child entrapment laws. Hope this makes sense. Nice finds, both westy's and the combo. ****** your door on this spacemate is "side swinging, with the hinges on the right. alr