Study for Vertical Progression
Oil · Board
Helmuth Stone Gallery · Sep 13, 2026Unsold / did not meet reserveImage courtesy Helmuth Stone Gallery
Auction result
Sky Over Mud
Thomas Koether (b. 1940)
$189 hammer plus premium ($150 + $39 premium)
≈ £144≈ €160
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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
- 13 x 17 in
- Auction house
- Helmuth Stone Gallery
- Sale
- August 23 Fine Art, Antique & Jewelry Auction (175624)
- Date
- August 23, 2020
- Location
- Sarasota, Florida, United States
- Lot
- 294
- Estimate
- $300 – $600 (≈ £228 – £457) (≈ €253 – €506)
- Source
- Auction house helmuthstone.com ↗Retrieved Sep 30, 2026
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Works by Thomas Koether with a longest side of about 43.2 cm (17 in) (±20 %).
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