Fruit Knives have been made over many centuries and were predominantly made in the UK in the towns of Sheffield and Birmingham. Folding Fruit Knives were ocasionally made in the Assay Offices of London, Chester, and even the assay office of Dublin.

Each set of hallmarks would comprise the lion passant, the town (assay office) mark and the sponsor's mark (or maker's mark) denoting which workshop or factory where the knife was made.

The number of marks placed on a piece will vary due to the date of the object. Pieces from the Georgian era would have the punch of the George III Head for example and the Lion Passat only placed on the silver blade. The date letter, and makers mark was usually stamped on the tang of the blade. This cannot be seen unless the knife was taken apart.

 

The Assay Office mark for Birmingham is an anchor.

 

The Assay Office mark for Chester was a shield containing a sword in the centre surrounded by three wheatsheafs.

 

The Assay Office mark for Dublin was the harp.

 

The Assay Office mark for London was a punch containing a Leopard's Head.

 

The Assay Office mark for Sheffield was a punch containing a crown.