My Mk II scope came in today from Gun Parts Corp. . When I compare it to my l42A1 and No4 Mk1 sniper rifles It looks very good indeed . Very clear view and the cross wire and post is not heavy . the steel tube is nicely made and is blued not raw steel painted . the front sun shield has the correct small flat head screw holding it to the main tube .There is the same screw positioned on the rear locking the ring the holds the lens into the large bell of the scope . The serial number is 1944 No. 17565. I will install it on my scope less l42A1 that I picked up from Navy Arms in 1990's .