1916 beaker with an unknown maker.

[Granmaa]

Here is a 1916 beaker with a beaded rim. The maker's mark is partially obliterated, but there is what looks like SZ left, or it could be 25 the other way up. Can anyone tell me who this is?

Miles



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[Margaux]

Since the A in the minervahead stands for Amsterdam. there are no solutions for a SZ in 1916. But if the SZ is in fact a GZ than the maker could be Groen.A & Zurel in Amsterdam (? - 1920). Does this help?
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[Granmaa]

I think you're right Margaux; thankyou very much.
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