Image courtesy Helmuth Stone Gallery
Auction result
Study Blue Progression
Thomas Koether (b. 1940)
$378 hammer plus premium ($300 + $78 premium)
≈ £279≈ €323
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- Medium
- Oil · Works on paper all oil results →As published: “Oil on Paper”
- Support
- Paper
- Signed / inscribed
- Signed lower right
- Category
- Oil paintings
- Dimensions
- 23 x 17.5 in
- Auction house
- Helmuth Stone Gallery
- Sale
- Fine Art Auction (414262)
- Date
- April 26, 2026
- Location
- Sarasota, Florida, United States
- Lot
- 187
- Estimate
- $250 – $500 (≈ £184 – £368) (≈ €213 – €427)
- Source
- Auction house helmuthstone.com ↗Retrieved Sep 30, 2026
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