Mark on Short Knife With S-Quillon Guard

[dana_w]

Originally Posted by Iain

Probably way off with this, but if this is a Russian imperial eagle, didn't Peter the Great decree that imperator should be used instead of tsar? Not sure if they used the IR abbreviation, but the 18th century would be a fit for the style of the dagger?

I'd love to find some way to date this knife to the 18th century. I've been thinking mid 19th century. Would love to hear what others think and find a similar example that can be dated.