Thanks for the replies,just to confirm that I am trying to find out what set up “MODULATOR TYPE 67” was used in.
Badger 1968,this is NOT test equipment.
The labels that everyone has tried to read are in fact attached to another unit standing next to the box in question.I know this for a fact ,the “group picture” is part of my collection and I put the labels on,Smirky has read the adjoining label correctly it is a boxed unissued waveform generator type 40.I believe that MOD,67 was part of an A.S.V. fit mounted in Swordfish aircraft,and the Royal Navy liked their boxes painted grey.