Doug,
This Montenegrin Gasser revolver is a late "officers" model, Vienna commercial proof 1913. Marked Crown/NI for Nikola I of Montenegro as well. The picture was taken this summer when I found out that it shoots .45 Colt Cowboy factory loads like they were made for it. As you may imagine by my handle, I'm interested in these extraordinary revolvers quite a bit.
With kind regards,
Jani