18th-Century? Syringe Hallmark Identification

Hello everyone,

I am new to this group in hopes of receiving some help in identifying these silver hallmarks found on this suspected 18th-century syringe. I would like to know its origin, its maker, and the years in which it was made. It was obtained from a German collector, but it is unknown if it is indeed of German origin.

Any help is much appreciated!

Many thanks to you all.

“mplusignan” has posted this question on another site (no problem with that!) and it has generated some replies. For those who might be interested the topic can be found here.