MAKster -
I can tell you that I have 2 from that lot and I am very pleased with them. One of them is marked the same as the one you posted , with a character (Hebrew , I think) that looks like an inverted "U" ; I believe that designates law enforcement service. There are others marked with the Star of David , which is an Israeli military designation. The law enforcement one has a noticeably lighter trigger than the military. I'm thinking heavier springs for NATO loads.
(I've since had the military HP worked on , trigger now about 5.5# .)
That lot of surplus High Powers represent a good value , IMO anyway. Great shooters.