Study for Vertical Progression
Oil · Board
Helmuth Stone Gallery · Sep 13, 2026Unsold / did not meet reserveImage courtesy Helmuth Stone Gallery
Auction result
Blue Watcher
Thomas Koether (b. 1940)
$315 hammer plus premium ($250 + $65 premium)
≈ £225≈ €260
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- Medium
- Oil · Paintings all oil results →As published: “Oil on Canvas”
- Support
- Canvas
- Signed / inscribed
- Signed verso
- Category
- Oil paintings
- Dimensions
- 20 x 17.25 in
- Auction house
- Helmuth Stone Gallery
- Sale
- American & European Fine Art Auction (193837)
- Date
- February 21, 2021
- Location
- Sarasota, Florida, United States
- Lot
- 236
- Estimate
- $350 – $700 (≈ £250 – £499) (≈ €288 – €577)
- Source
- Auction house helmuthstone.com ↗Retrieved Sep 30, 2026
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