Unidentified "black box"

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.

I was just going by the only item he provided a close-up of… which would indicate that this was what he wanted identified.

Looks like the label says this, but weren’t we looking for Modulator Type 67 :confused:

ARI 5594 Rebecca Mk IIB
TxRx TR3576
Rx type 159A
Tx type 105
Modulator type 66
Power unit type 286
Indicator type 233, 289
Switch unit type 115, 78A
Control unit type 222A
Aerial system type 308
Transmitter Aerial type 342
Receiver Aerial type 346
Amplifier type 178
Oscillator type 40
Waveform generator type 40

The paper attached to the right if the item says “waveform generator type (C-O?) MkIII” plus more illegible words.

The labels on the knobs confirm this… this is a piece of test equipment designed to generate signals where the operator varies pulse width, amplitude, voltage, delay between pulses etc.

If it is American, test equipment is normally that shade of grey.

It would be used in testing & repairing malfunctioning electronics… such as wireless sets..