English 1933 Silver and Gold fob, full hallmarks on rear: maker’s mark “T.F.”; the Anchor Birmingham emblem, indicating the approving assay offices; the English “Lion Passant” stamp for 925 Silver; a  boxed “J”, date stamp for Birmingham in the year 1933.
Plain centre shield is a thin overlaid sheet of 9ct Rose Gold, suitable for, for example, the engraving of initials. The rear is plain, save for hallmarks, and is also suitable for engraving.

Silver fobs such as the above English 1933 example were produced by the thousands in Birmingham from the late 1800s through to the inter-war years, made to hang as an ornament from the Silver chain which connected the watch from the vest button hole to the vest fob pocket where it rested. They were ordered by jewellery houses, clubs and associations all over England.
The above is a late example of the English Silver fob ornament, created while there were still gentlemen about adhering to the particularly Victorian fashion of the fob pocket watch and its chain. The Second World War put an end to it.