Hi Bums,
The gold looks to me like Miki, and the sterling strand may be also. I recall someone suggested Mikimoto in New York, they do appraisals, you probably would need to make some phone calls, but probably would be able to get a lot of addl info by calling them directly. PLEASE DO NOT take to just any jeweler for appraisal. Photos much improved! Wish mine were! If you are not in New York there are safe ways to "mail" your items for appraisals.
Pattye
so many pearls, so little time