Mark variant 1
Source-recorded mark text: Grogan Co.
The source two-line order is retained as GROGAN CO. above STERLING.
Low confidence comparison reconstruction.
Maker's mark comparison reference
Grogan Company maker's marks
Compare 1 source-linked mark variant recorded under Grogan Company. These are reconstructions for comparison, not source photographs or authentication evidence.
- Source location statements
- Pittsburgh, PA
- Source date statements
- The leading retail jeweler of Pittsburgh ca. 1890-1930, sold high end jewelry and silver.
Market evidence for Grogan Company
0.75–0.98× melt — the middle half of observed sold-price-to-silver-value ratios, from 12 weighable lots across 10 auction houses. Each lot uses the silver reference at its sale date.
This maker-level evidence does not value your object. Matching a mark cannot establish authenticity, material, condition or provenance.
Sources and comparison limits
Maker labels and date or location statements follow the cited source records. Similar names across source collections have not been merged. Compare the photographed mark and the complete object before relying on a resemblance.
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