Hi John,
I should have put "HIGH STANDARD USA MODEL HD, it was a typo on my part. In looking through your research files there is another pistol only 20 serial numbers apart (125939) that has the same parkarized barrel and blued frame. I wonder if there is some connection between the two.
125959:
http://www.rimfirecentral.com/forums/showthread.php?t=462109125939:
http://www.rimfirecentral.com/forums/showthread.php?t=292874&highlight=125939