Augustus Koopman Auction Prices and Value Guide
Augustus Koopman auction prices are tracked in Appraisily's artist market index, with source-directory coverage of 50 records. Use this page to review sold-lot activity, market context, and valuation factors before requesting a formal appraisal.
Augustus Koopman auction prices: quick answer
Augustus Koopman auction prices depend on medium, size, date, condition, provenance, edition details, attribution confidence, and recent comparable auction sales.
- Artist
- Augustus Koopman
- Source records
- 50
- Market update
- 2026-02-06
Augustus Koopman appraisal factors
Augustus Koopman auction prices should be read against comparable works with similar medium, size, date, condition, provenance, and attribution confidence.
Common auction categories
- Fine art and paintings
- Works on paper and prints
- Sculpture and mixed media
- Decorative art and editions
Value drivers
- Medium, size, date, and period within the artist career
- Condition, restoration history, and surface quality
- Signature, inscriptions, edition details, and attribution confidence
- Provenance, exhibition history, and catalogue references
- Recent comparable auction sales for similar works
- Subject matter, rarity, and demand in the current market
Appraisal caveats
- Public auction records are a starting point, not a final appraisal.
- Private sales, incomplete feeds, and attribution changes may not be fully represented.
- Authentication and condition can materially change value.
Recent sale records
Selected public auction records currently in the Appraisily lot index. Use them as market context, then request a formal appraisal before you sell, insure, or donate.

augustus koopman wisconsin 1869 1914 the curious onlookers returning home after baptism ca 1910 oil on canvas signed in the lower right corner · Setdart Auction House · 2026-03-18 augustus koopman wisconsin 1869 1914 the curious onlookers returning home after baptism ca 1910 oil on canvas signed in the lower right corner Setdart Auction House · 2026-03-18

augustus koopman oil on wood panel street scene · Willow Auction House · 2025-08-14 augustus koopman oil on wood panel street scene Willow Auction House · 2025-08-14

augustus koopman new york 1869 1914 · Helmuth Stone · 2025-06-22 augustus koopman new york 1869 1914 Helmuth Stone · 2025-06-22

augustus koopman ny nc france 1869 1914 oil on canvas · Broward Auction Gallery LLC · 2021-01-03 augustus koopman ny nc france 1869 1914 oil on canvas Broward Auction Gallery LLC · 2021-01-03
Data basis
This page is built from Appraisily's public auction market index. Private transactions, incomplete sale feeds, and attribution changes may not be fully represented.
Artist value FAQ
How much is Augustus Koopman worth?
Comparable public auction sales are the best starting point, but final value depends on the specific artwork, condition, size, medium, provenance, and attribution confidence.
Can Appraisily value my Augustus Koopman artwork?
Yes. Appraisily can review photos, dimensions, signatures, condition, provenance, and comparable market data to prepare a current valuation.