Callahan, Harry
Auction results and verified valuations · 23 tracked lots
Lots analysed
23
Realised price range
€718 – €26,496
Average price
€5,615
Median price
€4,195
Tracked works period
1980 – 1999
Every figure on this page comes from verified auction results, harvested by our intelligence engine across multiple international sources. No AI-generated estimates — only prices actually achieved at hammer. Refreshed regularly.
Where they are sold
Verified sources distribution
| Source | Lots |
|---|---|
| Source 1 | 23 |
Own a work by Callahan, Harry?
BookOracle benchmarks your piece against thousands of verified auction results and tells you what it is worth in 60 seconds — from a single photo. Price range, BookOracle Score™ and PDF certificate included.
Get a free valuation →