Glensound Electronics radio sound mixer, from BBC Manchester.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/30661871@N03">Richard Ash</a>
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/30661871@N03/45807917674/">IMG_5670</a>