Gorgeous Victorian assumed American 10ct solid Gold spinning fob/pendant.
On one side there is an oval bloodstone panel and on the other an oval Sardonyx gemstone.
(Note that the chain is not included)
In beautiful condition, this fob/pendant has no visible hallmark but does have the ’10ct’ stamped twice.
This swivel or spinning fob would have been made as a watch chain accessory however in the modern day these beautiful pieces look gorgeous as pendants, either worn low on a long heavy chain, or clustered with other pendants or lockets.