Can anyone date ID these scissors?

[NWMP]

Can anyone help me with the scissors for an ID? They are in just dug condition and the main distinguishing features are the three holes in a triangle and a line running down below them just above the joint pivot, almost looking like a tree or pawn shop balls. I also threw in my latest broach for the heck of it. (RC)

 

[Lucas]

This style shows up at French era and Brit era sites. I'll see if it is a Sheffield mark. Silver is definitely Brit era (post 1760). Can we see more of the knife?

 

[Lucas]

OK looked at Sheffield marks... none of the 18th c. scissors makers I have marks for used the three circles, BUT, it was a common motif for pen knife makers' marks. It would be the 3 circles plus something else, like *+, or Cross and shepherd's crook, or...

Having a pen knife makers' mark is not a problem on scissors. They made whatever there was a market for. If you can make out the rest of the mark, we can put a name and a range of dates to them.

The three circles are most common in the 1780's, from what I see.