Silver? Mark? Shot glass?

Found this listed. Interested in it maybe. The mark is an absolute mystery to me. I don’t love the way the edges of the cup look for silver. They look thick and machined vs what I’d expect for a handmade silver item. The mark looks it would be a silver makers mark more than a plated mark if I had to guess though. I believe it’s only a couple inches tall max. Anyone have bay input here?

 

The I/O notation means "the normal thickness of silver plating" and in my experience is most often found on the wares of WMF (Germany). What the image above it stands for, I don't know. But we did have a query about another item marked I/O not too long ago and if we can find that thread there may be a hint there.

 

Thanks Bakers! I didn’t like the looks of that “fraction”. I liked the other look of the other mark but I was thinking fractions usually aren’t good. Then remembered 925/1000 was often used at a certain point and decided maybe not all fraction marks on metal were bad. I can’t even find my own posts sometimes so I don’t know if I’ll be able to find the one you mentioned but I’ll look.

 

WMF 'antler' mark...

~Cheryl

 

Since I didn't remember seeing that "antler" mark in any of the online references before, I took a walk through silvercollection.it tonight. And sure enough (not that I had any doubt ) there are several images of WMF marks that include this one. Here's one example:

 

Thank you Bakers & Dragonfly! Good one to know!