i bought it from Ebay auction, from one guy who is most likely well known in this "world". I supouse he is well known as he is selling lot of locos all the time on Ebay – squireathuttonbs24
He said is it very vell engineered and wasn't been on steam since long time, was standing on the display and need "all the necessary work"
I haven't seen any stamps on the boiler…
If i remember right, there is a red dot marked on the pressure gauge at 70 psi.