> Source: https://www.openingbid.art/artist/william-thon · updated 2026-11-03

# William Thon (1906–2000)

## What is William Thon’s work worth? {#value}

As of 3 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.

**Top auction records: paintings, drawings & sculpture**

| # | 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 |


**Median price by medium (last 24 months, n ≥ 5)**

| Medium | Sales | Median |
|---|---|---|
| Paintings | 11 | $1,375 |
| Works on paper | 15 | $1,300 |

**Median price by size (last 24 months, n ≥ 5)**

| Size | Sales | Median |
|---|---|---|
| Medium (50-120 cm) | 22 | $1,288 |

Data as of 3 November 2026 · Source: OpeningBid, 29 results from 6 houses · [How we compute these figures](https://www.openingbid.art/methodology/price-data)


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.

## 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. The full sale history is in the OpeningBid app (free sign-up).

## 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.

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Data last updated 2026-11-03. OpeningBid tracks 15,596,131 auction lots from 579 auction houses, refreshed nightly.

Cite this page as: OpeningBid, “William Thon auction prices”, https://www.openingbid.art/artist/william-thon (updated 2026-11-03).

Historical auction data, not investment advice. Prices are premium-inclusive USD where the buyer's premium is recorded. Figures marked † are hammer prices (buyer's premium not included); ‡ marks a price whose basis is not yet verified. Non-USD results are converted at the sale month's rate.