Small silver-plated or metal cup, unverified maker's marks

This small vessel appears to be a small cup or pedestal bowl, often referred to by the owner as a petite coupe, though this user-supplied attribution is entirely unverified. The object is constructed from a metallic material with a silver-colored finish, showing significant surface wear, scratching, and oxidation or tarnish, particularly concentrated around the interior base and rim. The interior bottom displays two distinct stamped hallmarks or maker's marks: one is diamond or lozenge-shaped enclosing letters that appear to read 'JP' alongside a small symbol, and the adjacent mark is squarish or hexagonal with an illegible crest or symbol. These physical markings are visible upon close inspection of the inner base, but their exact origin and attribution remain unconfirmed. The piece displays a dull patina consistent with age and use, exhibiting concentric circular polishing or lathe marks on the interior floor. Craftsmanship suggests a functional, mass-produced or studio-produced small metalware item, but due to the limited view of the interior base and lack of further contextual evidence, its precise age, style period, and exact metallic composition cannot be stated as fact.

Based on what I can see in the provided image, this small vessel—referred to by the owner as a petite coupe—is constructed from a metallic material with a silver-colored finish, displaying significant surface wear, scratching, and tarnish around the interior base and rim. The interior bottom features two stamped marks, including a lozenge-shaped mark enclosing what appear to be the letters 'JP' and an adjacent squarish or hexagonal mark with an illegible crest. Per user submission, the piece is presented as a small silver-plated or metal cup with unverified maker's marks. I cannot verify from a photo the exact metallic composition, age, or whether these marks correspond to a specific maker, as visible hallmarks can be subject to misinterpretation or imitation. Physical inspection and hallmark verification would be needed to better understand the piece. My value estimate of $50 to $150 assumes the identification and any associated maker attribution are correct. In this range, the value reflects general market demand for decorative small metalware exhibiting signs of age, active tarnish, and concentric lathe marks on the floor. If physical examination, expert appraisal, or scientific testing reveals the item is a later reproduction, a generic copy, or unattributed mass-produced ware rather than a period piece by the hypothesized maker, the value would likely drop to the $20 to $40 range, driven solely by its intrinsic or decorative appeal.