Robert Proch / TONE (1986–2019)
Robert Proch / TONE is a Polish artist with 18 auction lots recorded since 2020, median price $12,223. Some sold prices are hammer-only and exclude the buyer's premium; they are marked on this page.
A work by Robert Proch / TONE sold in 2025 for $23,153, according to OpeningBid's index of auction results.
See the full Robert Proch / TONE record on OpeningBid — images, provenance, fair estimates and free sale alerts.
View Robert Proch / TONE on OpeningBid →What is a Robert Proch / TONE work worth?
Across 15 sold lots tracked by OpeningBid, the median price of a Robert Proch / TONE work is $12,223.
The median Robert Proch / TONE painting sells for $12,569 across 11 lots.
The median Robert Proch / TONE print sells for $833 across 2 lots.
Some prices are hammer-only and exclude the buyer's premium.
Price breakdown by category
| Category | Lots tracked | Median price | Record price | Sell-through | Last sale |
|---|---|---|---|---|---|
| Prints & Editions | 2 | $833† | $1,091 | — | 2025-10-22 |
| Paintings | 13 | $12,569† | $23,153 | 84.6% | 2025-04-14 |
† hammer price — buyer's premium not included.
Robert Proch / TONE's market splits by medium. Prints & Editions (2 lots) median $833. Paintings (13 lots) median $12,569, record $23,153. A typical Robert Proch / TONE painting sells for around 15× the price of a typical print.
Price by size
Paintings
| Size | Sold lots | Typical range (p25–p75) | Median | Record |
|---|---|---|---|---|
| large (over 120 cm) | 7 | $12,396–$18,581† | $16,483† | $23,153 |
† hammer price — buyer's premium not included.
Size is the work's longest edge. Cells appear only with at least 5 sold lots.
Notable results
| Medium | Year | Price |
|---|---|---|
| Paintings | 2025 | $23,153 |
| Paintings | 2023 | $19,098† |
| Prints & Editions | 2025 | $1,091 |
| Prints & Editions | 2021 | $575† |
† hammer price — buyer's premium not included.
The highest recorded result in each medium. See the full sale history on OpeningBid.
Frequently asked questions
What is a Robert Proch / TONE worth?
Across 15 sold lots tracked by OpeningBid, the median price of a Robert Proch / TONE work is $12,223. The median Robert Proch / TONE painting sells for $12,569 across 11 lots. The median Robert Proch / TONE print sells for $833 across 2 lots. Some prices are hammer-only and exclude the buyer's premium.
What is the average price of a Robert Proch / TONE painting?
Based on 11 sold lots tracked by OpeningBid, the median auction price of a Robert Proch / TONE painting is $12,569. Some prices are hammer-only and exclude the buyer's premium.
What is Robert Proch / TONE's most expensive painting?
The highest price recorded at auction for a Robert Proch / TONE painting is $23,153.
What is Robert Proch / TONE's auction record?
Robert Proch / TONE's auction record is $23,153, set in 2025.
See the full Robert Proch / TONE record on OpeningBid — images, provenance, fair estimates and free sale alerts.
View Robert Proch / TONE on OpeningBid →