victorian pendant fob

by Geoff
(County Durham)

i have found a fob at my grandparents and was wondering what year and exactly what it is,

so it has bloodstone on one side and on other is a green with dashes of red in the green stone.
markings on the side are in order of;
- 9
- 375
- symbol of a anchor
- letter z
also there is another symbol but too worn to realise what it is.
the fob is connected to a gold bar that enables it to swing with a detailed pattern on the gold bar.