Study for Vertical Progression
Oil · Board
Helmuth Stone Gallery · Sep 13, 2026Unsold / did not meet reserveImage courtesy Helmuth Stone Gallery
Auction result
Warning
Thomas Koether (b. 1940)
Unsold / did not meet reserve
Estimate $300 – $600 (≈ £223 – £445) (≈ €258 – €515)
Offered at Helmuth Stone Gallery and passed / bought in. Counted in the artist’s sell-through rate; no price, so not in price averages.
Email alerts for new results and upcoming sales
- Medium
- Oil · Works on paper all oil results →As published: “Oil on Paper”
- Support
- Paper
- Signed / inscribed
- Signed lower left and signed, titled and dated verso
- Category
- Oil paintings
- Dimensions
- 17.75 x 21.25 in
- Auction house
- Helmuth Stone Gallery
- Sale
- Premier Fine Art Auction (401037)
- Date
- January 11, 2026
- Location
- Sarasota, Florida, United States
- Lot
- 193
- Estimate
- $300 – $600 (≈ £223 – £445) (≈ €258 – €515)
- Source
- Auction house helmuthstone.com ↗Retrieved Sep 30, 2026
Own a work by Thomas Koether? Get a free auction estimate →
Own this work? Add it to My Collection → Private to you, with alerts when comparable works sell.
Similar size by this artist
Works by Thomas Koether with a longest side of about 54 cm (21.3 in) (±20 %).
Cave Painting
Oil · Paper
Helmuth Stone Gallery · Apr 26, 2026$189 ≈ £139 ≈ €161Sign up free to see price
Study Blue Progression
Oil · Paper
Helmuth Stone Gallery · Apr 26, 2026$378 ≈ £279 ≈ €323Sign up free to see price
The Red Rock
Oil · Paper
Helmuth Stone Gallery · Jan 11, 2026$126 ≈ £93 ≈ €108Sign up free to see price
More results for Thomas Koether
Study for Vertical Progression
Oil · Board
Helmuth Stone Gallery · Sep 13, 2026Unsold / did not meet reserve
Non-linear Transfinite Cosmology
Oil · Canvas
Helmuth Stone Gallery · Sep 13, 2026Unsold / did not meet reserve
Also in this sale
Premier Fine Art Auction · Helmuth Stone Gallery · Jan 11, 2026
Sounding Sculpture
Sculpture · Panel · ed. 17/50
Helmuth Stone Gallery · Jan 11, 2026$54,180 ≈ £40,196 ≈ €46,538Sign up free to see price
Flying Wild Geese
Sculpture
Helmuth Stone Gallery · Jan 11, 2026$47,880 ≈ £35,522 ≈ €41,127Sign up free to see price
Sunburst
Sculpture
Helmuth Stone Gallery · Jan 11, 2026$42,840 ≈ £31,783 ≈ €36,798Sign up free to see price
Cow Triptych
Screenprint · Paper · ed. 130/150
Helmuth Stone Gallery · Jan 11, 2026$25,200 ≈ £18,696 ≈ €21,646Sign up free to see price
Princess and the Unicorn
Sculpture
Helmuth Stone Gallery · Jan 11, 2026$21,420 ≈ £15,891 ≈ €18,399Sign up free to see price
Offshoot, 1982
Sculpture · ed. 5/10
Helmuth Stone Gallery · Jan 11, 2026$17,640 ≈ £13,087 ≈ €15,152Sign up free to see priceSimilar works
Oil results by other artists.
© Leonard Joel — view on Leonard Joel website ↗Mining Town
Oil · Canvas
Leonard Joel · Oct 6, 2026A$6,000 ≈ $4,189 ≈ £3,162 ≈ €3,717Sign up free to see price
© Leonard Joel — view on Leonard Joel website ↗Picnic, 1984
Oil · Canvas
Leonard Joel · Oct 6, 2026A$12,000 ≈ $8,378 ≈ £6,325 ≈ €7,435Sign up free to see price
© Leonard Joel — view on Leonard Joel website ↗The Cottage in the Rye
Oil · Canvas
Leonard Joel · Oct 6, 2026A$7,000 ≈ $4,887 ≈ £3,689 ≈ €4,337Sign up free to see price
© Leonard Joel — view on Leonard Joel website ↗The Out-Station Alexandria Downs, Northern Territory
Oil · Canvas
Leonard Joel · Oct 6, 2026A$10,500 ≈ $7,331 ≈ £5,534 ≈ €6,506Sign up free to see price
© Leonard Joel — view on Leonard Joel website ↗(Early Evening Shoalhaven Riverbank)
Oil · Canvas
Leonard Joel · Oct 6, 2026A$3,000 ≈ $2,095 ≈ £1,581 ≈ €1,859Sign up free to see price
© Leonard Joel — view on Leonard Joel website ↗Draped Nude, c.1947
Oil · Canvas
Leonard Joel · Oct 6, 2026A$2,600 ≈ $1,815 ≈ £1,370 ≈ €1,611Sign up free to see price