Lost in Space Jupiter 2 Microphone

This is a prototype microphone that was made for the Jupiter 2 spaceship on the original Irwin Allen sci-fi television series 'Lost In Space' (1965-1968). This solid state, heavy duty microphone is an 'Astatic 333-6' model and was created for the show, but the studio later changed the design and it was not utilized on the series. Comes with a letter of provenance.