having dug it out it is not as similar as I thought...........apologies for the naff photos, need a new camera.
measures 26cm wide, 33cm high, and 10cm deep.
i think the UDU on the label stands for Underwater Demolitions Unit.
I think it could be rope related also , a coil would be smaller then uncoiled hence the compression type sides . Good luck finding out , I love the DPM pouch .
Thanks for this . I can see the resemblance with the eyelets. Again, another item I haven't seen before. I wonder how far back this style went. Being DPM - You would think 1960 Pattern or perhaps earlier. Who knows.
I wonder if there is a catalogue floating about that includes the serial numbers for equipment, that may help me out...
The search continues. All the best!
British DPM webbing starts from 1995, the 3rd issue of PLCE