The is a two-fuse fuse block or fuse box with screw terminals.
It is correct for a variety of cars, including Jaguar XK140, XK150, later MG TD (from c8142), MG TF, MGA, Bugeye Sprite, Sprite MK I and II, Midget MK 1, TR3, TR3, early TR3A (to TS6000)0, and Austin Healey BN1 - BJ7.
It is a nicely made reproduction part. We have a limited stock of NOS ones as well; see related listing below.