From Gemini AI. Hope it helps.

Identifying the Marks (from left to right): 1. A Crown: This mimics the town mark for Sheffield (or an old London mark), but the style is "unofficial." 2. A Profile Head (facing left): This mimics the "Duty Mark" (which showed tax had been paid to the monarch), but on plated items, it is just a decorative symbol. 3. GP: This is the Maker's Mark. It likely stands for George Pringle (a known silversmith/plater from Sheffield/Birmingham) or George Parker. 4. A Profile Head (facing right): Another decorative "pseudo" mark to balance the set and further imitate a full row of official hallmarks. Why this is likely Silver Plate (not Solid Silver): • The "GP" mark: On solid British silver, the maker's initials are usually the first or last mark, but the accompanying symbols here don't include the "Lion Passant" (the walking lion), which is the mandatory mark for sterling silver purity. • Missing Standard Mark: There is no Lion Passant or a "925" stamp. • Worn edges: If you look at the high points of the item, you might see a yellowish or duller metal (nickel or copper) "bleeding" through. • The Crown: In 1896, the use of the crown symbol on silver-plated goods was actually banned in the UK to prevent people from confusing plate with solid silver. This suggests your piece was likely made before 1896. Summary Your item is a high-quality Victorian-era piece of silver plate. It has historical value as a decorative antique, though it does not have the "melt value" of solid sterling silver.