JOBLOT OF 12 X ANTIQUE & VINTAGE  BEAUTIFUL CAMEOS TO  INC 10K GOLD FRAME ?  SARDONYX, SWIVAL FRAME.

PHOTOS ARE NUMBERED FOR EASYNESS, I DO NOT NO WHAT ALL OF THE SHELLS ARE CALLED, THERE x2 PLASTER .  PLEASE LOOK AT ALL THE PHOTOS. I WILL TRY AND LIST OUT 1-12 there heights & WHAT I THINK THEY COULD BE. PLEASE STUDY ALL PHOTOS.

1. Largest cameo shell approx. 6.1 cm tall at its tallest.  2. I think this is sardonyx, approx. 4.3 cm tallest inc frame, the swivel frame only where the cameo is could be gold, i have not got equipment to test. Has a very old clasp.  3. Think coral, height 2.3 cm at tallest.
this piece is antique, pre-owned/inherited, and of Italian or Mediterranean origin to show it is not newly harvested. 4. Think this is sardonyx shell, height approx. just under 3 cms, has very old clasp. 5.height approx. 3.2 cm has bail and clasp shell.6.height approx. 2.6 cm has bail and clasp shell. 7. think plaster height approx. 3 cm. 8. think plaster height approx. 2.6 cm has full face, which is raised. 9. classic 3 ladies, this is the one has hallmark that looks like 10k. cant be sure, height approx. 2.8 cm, has bail and clasp.10. height  approx. 4cm some kind of shell. 11. This also looks like 10 k stamp, but cant be sure, just a bail on the top, height approx. 3cms. 12. height approx. 3.2 cms has bail and clasp.

ALL LOOKS SO MUCH BEETER IN REAL LIFE, TAKEN WITH A MACRO LENS AND DOES NOT SEEM TO BE VERY CLEAR PHOTOS

All the above is myself  guessing and a bit of research, from the shell, plaster, to the metal. I have looked under a loop on the hallmarks, on some of them, and one  sticks out in particular could say 10k, but not very clear. Nor is the other hallmarks clear. Please bear this in mind when you bid. I'm sure who ever is interested will know so much more than myself, on these cameos. All the above is only my opinion , I'm not a expert. The measurement are approx. to as near as possible.