Dutch Silver marks ?

[vervene]

Hello everyone,

I have this silver plate and I have not indentify the hallmarks. Can someone help me ?

Thanks !

[Dendriet]

A shot in the dark

Data from my laptop, on my way

City mark of Rotterdam, Makers mark (IS *) of Johannes Jansen (silversmith 1772-1811) . Date letter b (???)

Regards
Dendriet

[oel]

Yes, IS for Johannes Jansen active in Rotterdam 1773-1818, the year he died.Year letter q for 1774
For the town mark of Rotterdam see;
viewtopic.php?f=5&t=32028

Best,

Peter

[Dendriet]

Hi Peter,

I did not have enough space to stand upside down in my car (b→q)

Regards
Dendriet

[vervene]

Dear Dendriet and Oel, thank you very much !