Ok interesting Mike
So you are responsible for some of the DD markings - with a hand operated screw press, you must have developed a larger bicep on one arm
. What became of the DD die / stamp that you used ? Did you have to return it to the Govt. ? I would imagine that copying such a stamp would be an illegal thing to do .
I had a feeling that the spanners I have are post WW2 . Now I know for sure .