Just curious as to why it went for so much…

Thanks Alan

It’s what it says on the box, Elliott.

A Mk. IV Computor Unit, part of the Type F Torpedo Director.

I’m not sure about the wartime use of this equipment (maybe later Beaufighters and Barracudas), but it was probably intended for the Spearfish, Wyvern and Sturgeon, and may have ended up in the Gannet.

Co-incidentally, torpedo, bomb and gunsights may be the subject of Volume 4. 😎