I've never come across one of these and wondered if anyone can share an example of such a piece with us?
THE "MASTICUS."

The numerous class suffering from indigestion are so often recommended by medical advisers to cut meat into small pieces to facilitate mastication, that Messrs. H.J. Cooper & Co., Ltd., 22 and 23, Thavies Inn, Holborn Circus, London, E.C., have done well in introducing the "Masticus," here shown (fig. 12). As will be seen from the illustration, it consists of a light frame having six rows of sharp teeth, by which any kind of meat can be quickly macerated. This appliance is slipped upon the ordinary table fork, and will be found effectual in use and easily kept clean. It is made in best electro-plate and in solid silver, and is put up in a neat compact case for the pocket. In our “New Catalogue and Price List” column, we give particulars of Messrs. Cooper & Co.'s No. 9 list, just published, containing particulars of numerous lines in jewellery, watches, optical goods, and plate.
Source: The British Trade Journal - 1st January 1904
Anybody got one?
Trev.