AKA Sig P210. You got it.SIG M/1949--
It is the 47/8 model purchased for the Danish military and issued version for officers, military police, and special forces, chambered in 9mm Luger.
Usually called only Neuhausen in Denmark, this model is stamped "P m/49", and also known as "P210-DK". First issued beginning in 1950 to the Danish Army Technical Corps (stamped "HTK"), this remained the standard sidearm in the Danish military throughout 60 years of continuous use.
(From wikipedia)