William Thon (1906–2000)
What is William Thon’s work worth?
As of 2 November 2026, OpeningBid has recorded 29 auction results for William Thon at 6 houses since 1995. Over the last 24 months the median price was $1,690 including buyer’s premium (middle half $1,452–$3,750, n=5). The auction record is $12,500 for The Waterfall (2022, Grogan & Company). Source: OpeningBid, an independent auction-results database.
| # | Work | Medium | Price | House | Sold |
|---|---|---|---|---|---|
| 1 | The Waterfall | Oil on masonite | $12,500 | Grogan & Company | Nov 2022 |
| 2 | The Overlook | Oil on canvas | $5,937 | Grogan & Company | Nov 2024 |
| 3 | Ship in Stormy Sea | Oil on masonite | $3,750 | Grogan & Company | May 2026 |
| 4 | Winter Landscape; Forest in Winter | Watercolors with gouache | $3,750 | Swann Auction Galleries | Jun 2021 |
| 5 | Wind Song | Watercolor on cream wove paper | $3,250 | Swann Auction Galleries | Jun 2018 |
| 6 | Birds in the Trees, Sligo, Corner of Hadrian's Villa, November Frost, and Ruins at Albano | Watercolors | $2,640 | Swann Auction Galleries | Jun 2013 |
| 7 | Maine Forest, circa 1950 | Watercolor and ink on Fabriano wove paper | $2,250 | Swann Auction Galleries | Sep 2024 |
| 8 | Trees (Yellow and Amber), 2000 | Watercolor and ink on Fabriano wove paper | $1,690 | Swann Auction Galleries | Mar 2025 |
| 9 | Two watercolors, 1955 | Watercolors | $1,560 | Swann Auction Galleries | Sep 2020 |
| 10 | Winter Landscape, 1960 | Oil on canvas | $1,500 | Swann Auction Galleries | Jun 2021 |
| Medium | Sales | Median |
|---|---|---|
| Paintings | 11 | $1,375 |
| Works on paper | 15 | $1,300 |
| Size | Sales | Median |
|---|---|---|
| Medium (50-120 cm) | 22 | $1,288 |
Data as of 2 November 2026 · Source: OpeningBid, 29 results from 6 houses · How we compute these figures
William Thon is an American artist with 38 auction lots recorded since 1995, median price $1,300. Some sold prices are hammer-only and exclude the buyer's premium; they are marked on this page. Some sold prices are not yet verified as premium-inclusive or hammer, and are marked on this page.
A work by William Thon sold in 2026 for $1,452, according to OpeningBid's index of auction results.
See the full William Thon record on OpeningBid — images, provenance, fair estimates and free sale alerts.
View William Thon on OpeningBid →What is a William Thon work worth?
Across 29 sold lots tracked by OpeningBid, the median price of a William Thon work is $1,300.
The median William Thon work on paper sells for $1,365 across 16 lots.
The median William Thon painting sells for $1,375 across 11 lots.
The median William Thon print sells for $115 across 1 lots.
Prices are premium-inclusive where the house records them; hammer-only prices exclude the buyer's premium, and some prices are not yet basis-verified.
Price breakdown by category
| Category | Lots tracked | Median price | Record price | Sell-through | Last sale |
|---|---|---|---|---|---|
| Prints & Editions | 3 | $115 | $115 | 33.3% | 1996-02-08 |
| Paintings | 14 | $1,375‡ | $12,500 | 78.6% | 2026-05-03 |
| Works on Paper | 16 | $1,365 | $3,750 | — | 2026-09-17 |
‡ reported price — whether it includes the buyer's premium is not yet verified.
William Thon's market splits by medium. Prints & Editions (3 lots) median $115 with 33.3% sell-through. Paintings (14 lots) median $1,375, record $12,500. A typical William Thon painting sells for around 12× the price of a typical print.
Price by size
Paintings
| Size | Sold lots | Typical range (p25–p75) | Median | Record |
|---|---|---|---|---|
| medium (50–120 cm) | 9 | $652–$3,750‡ | $1,375‡ | $12,500 |
‡ reported price — whether it includes the buyer's premium is not yet verified.
Works on Paper
| Size | Sold lots | Typical range (p25–p75) | Median | Record |
|---|---|---|---|---|
| medium (50–120 cm) | 13 | $764–$1,690 | $1,430 | $3,750 |
Size is the work's longest edge. Cells appear only with at least 5 sold lots.
Notable results
| Medium | Year | Price |
|---|---|---|
| Paintings | 2022 | $12,500 |
| Paintings | 2024 | $5,937 |
| Works on Paper | 2021 | $3,750 |
| Works on Paper | 2018 | $3,250 |
| Prints & Editions | 1996 | $115 |
The highest recorded result in each medium. See the full sale history on OpeningBid.
Frequently asked questions
What is a William Thon worth?
Across 29 sold lots tracked by OpeningBid, the median price of a William Thon work is $1,300. The median William Thon work on paper sells for $1,365 across 16 lots. The median William Thon painting sells for $1,375 across 11 lots. The median William Thon print sells for $115 across 1 lots. Prices are premium-inclusive where the house records them; hammer-only prices exclude the buyer's premium, and some prices are not yet basis-verified.
What is the average price of a William Thon work on paper?
Based on 16 sold lots tracked by OpeningBid, the median auction price of a William Thon work on paper is $1,365.
What is William Thon's most expensive work on paper?
The highest price recorded at auction for a William Thon work on paper is $3,750.
What is the average price of a William Thon painting?
Based on 11 sold lots tracked by OpeningBid, the median auction price of a William Thon painting is $1,375. Some prices are not yet basis-verified (premium-inclusive or hammer).
What is William Thon's most expensive painting?
The highest price recorded at auction for a William Thon painting is $12,500.
What is the average price of a medium William Thon work on paper?
Based on 13 sold lots, the median auction price of a medium William Thon work on paper (medium (50–120 cm)) is $1,430, according to OpeningBid's index of auction results.
What is William Thon's auction record?
William Thon's auction record is $12,500, set in 2022.
See the full William Thon record on OpeningBid — images, provenance, fair estimates and free sale alerts.
View William Thon on OpeningBid →