It was build here in Denmark. the seller told me it was two brothers and after on spend some time I the US he saw some airhammers and then went back and they started making them. There is two sizes, this I the big one and the take is 50kgish and it hits super hard.
I don't know how old it is but I can't find any info on the company, all bolts are in inches so it has to be old;) I
I don't owne the book where can it be found?
I have been working a lot lately and there is a lot to read up on this thread already. But I will try to take a foto tomorrow an draw a flow chart on it:)
Thanks for all the inputs