Identification
Photo reference
3 uploaded photos
Overview
The base features the etched script mark 'Gregorian Copper 313' with a copyright symbol, confirming the maker and model. Gregorian Copper was founded in 1946 in California and produced hand-hammered copper wares in the Arts and Crafts revival style until the late 20th century. The piece exhibits the characteristic planished surface, scalloped rim, and blued patina associated with the Gregori brothers' workshop.
Story
Gregorian Copper was founded by the Gregori brothers (P.R. and Fred) in California in 1946. They produced hand-hammered, solid copper wares finished with a proprietary bluing process to create a distinctive, warm patina. The company was a prominent player in the mid-20th-century American Arts and Crafts revival movement, operating until the late 20th century. The secondary market for mid-century American copper, particularly Gregorian, is stable but soft, characterized by abundant supply and modest demand.
Maker / Origin
Gregorian Copper
Condition & Value
The bowl appears to be in generally good vintage condition with the characteristic planished surface intact. The seller notes a 'warm, glowing patina,' though dark spots are visible in the center which may indicate localized oxidation or finish wear.
Full Research
Sold comps, value drivers, and venue guidance pulled from recent auction results.
The secondary market for mid-century American copper, particularly Gregorian, is stable but soft, characterized by abundant supply and modest demand. Buyers are typically casual collectors of Arts and Crafts revival decor or mid-century metalwork. Items move reliably at lower price points ($15-$30) on platforms like eBay and Etsy, but struggle to command premiums unless they are exceptionally large, rare forms, or part of a complete set.
▲ Clear, verifiable 'Gregorian Copper 313' maker's mark confirms authenticity and model.
▲ Original, unpolished patina preserves the signature Gregorian finishing process.
▲ Hand-hammered planished surface appeals to Arts and Crafts revival collectors.
▼ Missing physical dimensions prevent exact scale verification, which can impact buyer confidence.
▼ Unverified structural condition—hidden dents or deep scratches would push value to the $10-$15 floor.
▼ Dark spots in the center may indicate finish loss or active oxidation, potentially requiring minor restoration.
Best Venue
List on a broad e-commerce platform like eBay or Etsy with clear, well-lit photos highlighting the maker's mark and hammered texture. Ensure exact dimensions (diameter and height) are included in the listing to help buyers gauge scale. Do not polish the piece, as removing the original Gregorian patina will significantly diminish its value.
Upside Potential
If the bowl is confirmed to be entirely free of dents, deep scratches, or finish wear, and possesses a larger-than-average diameter for this form, it could reach the upper retail asking range of $40-$50 seen in optimistic boutique listings.
Also found — market-range context
Surfaced during research but not used to anchor the valuation — wrong form, species, era, or no published price. Shown so the market range around this item is visible.