All we can establish from your description is the piece is 9 carat gold which is the most hard wearing. 9K, 9ct or 375 (parts per 1000) or is 37.5% gold (mainly British Commonwealth countries. Not recognized in USA).
They sound like british hallmarks but I cannot picture the other marks you described, I'm not sure if you mean F & X? Also their are hundreds of animal marks. A photo of the marks would help our researchers. You can upload a photo in a follow-up submission if you like. Thankyou.
