I'm in the UK, honey - I'll pm. ;)
I've had that! This was the B&B: https://www.thepinesateastleigh.co.uk/ Lovely place.
I think the pearl earrings may be German, post WW2. Big brooch perhaps Czech, between the wars. Red brooch, post WW2. I don't think the cross is...
I think it may be production from Korea rather than studio. Lovely glaze.
Wannabee Limoges, made in China as modern giftware.
Japanese Makie lacquer.
Enamel on base metal, anyhow. Korean I suspect.
Appledore is lovely, I used to stay not far from there on business. There's a very good B&B close to Bideford. Scrambled eggs with clotted cream...
I'm not convinced the pin is replaced.
Southern France, North East Spain. Provence/Catalogne/Catalunya.
Send the Bear the clips and no one gets harmed.
Gawd, I'm a millionaire.
I'd not use vinegar, but I've used a drop of Fairy liquid in water on them.
I'll lay odds someone on that FB page will know,there's some absolute geniuses.
The scales are common control hallmarks, from 1973 onwards. Vinegar won't hurt.
I'd be looking at Belgium or West Germany.
I think that may be a potter's mark, rather than an RD?
Transfer and decal are the same thing in different countries.
Might have been stuck in a box outside for a while, that would do it.
Try the British Studio Pottery Facebook group. Clever bunch.
Separate names with a comma.