Prototype reel-to-reel tape machine produced by Salford Electrical Instruments (a division of General Electric Company, hence the GEC logo on the panel). Erase and Recording heads stick through slots in brass cans (right), with playback in a mu-metal casting (left).
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/30661871@N03">Richard Ash</a>
CC BY-SA 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/30661871@N03/44714233360/">IMG_5614</a>