The hallmarks on these appear to be for silver plate (electroplate) from Sheffield, England, likely dating from the late 19th to early 20th century.Based on visually similar markings, these "pseudo-hallmarks" often include a maker's mark followed by icons representing the plating standard and the city of origin.Potential IdentificationOrigin: The style of these marks is consistent with Sheffield, England.Material: The "FS" or similar leading letters likely represent the maker's mark, while the subsequent icons are quality marks for silver plate (often indicated by letters like EP for Electroplate) rather than sterling silver.Typical Makers: Marks in this style were common for firms such as Frank Cobb & Co. (F.C. & Co.) or Walker & Hall.Knife Type: These are likely fish knives or dessert knives, which commonly featured silver-plated blades as they were less prone to tarnishing from acidic foods compared to steel. One of the knives has a loose handle but can be repaired.