Featured BIG silver clip ons

These are 1and a half inches across! No info as flea market buy. Remind me of Viennese whirl biscuits, not much smaller really. There is a very indistinct London import mark and a faint 925 in an oval but the rest of the marks are far too rubbed. I am hoping someone recognises the other marks, writing please.
Thank you.

 

Thanks INH, certainly looks as if they could be this person Bat Ami, I would NEVER have read it as Bat as it just looked like a squiggle, plus they do look like this designers style.

 

Ive had a look around and I think you found the right person. There are pieces described as huge which they could make by the electroforming technique which kept the weight down. Three generations and still making jewellery.

 

Yes, I thought it was Arabic!