COL-R-TEL
https://mztv.oncell.com/project-assets/5032/img/5287f79483458350ba2807e9f53910832705c12858d44e297d7d4c8d.jpg
1955, 1946 | USA
This early mechanical adapter was used to convert black and white television to colour. It featured a large tri-colour disc, a motor and a control assembly, to produce a colour picture.
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