18th-Century? Syringe Hallmark Identification

The Basics... Identification Help - What is it?
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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.

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“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.

Phil