I don't know what equipment this is for or any other details so it is sold as seen!  It is built in a substantial metal enclosure with 8 external connections on feed through capacitors. The shaft operates a 4 gang variable capacitor, each section having a trimming slug. There are 2 transistors, a BF180 and a BF181. Overall size 110 x 70 x 30mm. Numbers on sticker 5BA 3113 108 55551 431476. See my other items for more "interesting stuff" that I have collected over the years! I will always combine postage where possible.