George Joseph Koch Auction Prices and Value Guide
George Joseph Koch auction prices are tracked in Appraisily's artist market index, with source-directory coverage of 34 records. Use this page to review sold-lot activity, market context, and valuation factors before requesting a formal appraisal.
George Joseph Koch auction prices: quick answer
George Joseph Koch auction prices depend on medium, size, date, condition, provenance, edition details, attribution confidence, and recent comparable auction sales.
- Artist
- George Joseph Koch
- Source records
- 34
- Market update
- 2026-02-06
George Joseph Koch appraisal factors
George Joseph Koch 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.
george joseph koch california new jersey 1885 1951 nocturnal harbor scene watercolor 13 75 x 9 5 sight framed 23 5 x 18 5 · Sandwich Auction House · 2026-04-15 george joseph koch california new jersey 1885 1951 nocturnal harbor scene watercolor 13 75 x 9 5 sight framed 23 5 x 18 5 Sandwich Auction House · 2026-04-15
george joseph koch 1885 1951 pacific grove bathers 1944 · John Moran Auctioneers · 2025-11-18 george joseph koch 1885 1951 pacific grove bathers 1944 John Moran Auctioneers · 2025-11-18
george joseph koch ca nj 1884 1951 · Helmuth Stone · 2024-08-18 george joseph koch ca nj 1884 1951 Helmuth Stone · 2024-08-18
george joseph koch american 1884 1951 spring light in trees oil on masonite 32 1 4 x 26in 82 x 66cm · Andrew Jones Auctions · 2024-05-15 george joseph koch american 1884 1951 spring light in trees oil on masonite 32 1 4 x 26in 82 x 66cm Andrew Jones Auctions · 2024-05-15
george joseph koch 1885 1951 monterey green oil on panel 20 h x 24 w · John Moran Auctioneers · 2023-11-14 george joseph koch 1885 1951 monterey green oil on panel 20 h x 24 w John Moran Auctioneers · 2023-11-14
george joseph koch 1884 1951 oil board · Sarasota Estate Auction · 2015-05-30 george joseph koch 1884 1951 oil board Sarasota Estate Auction · 2015-05-30
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 George Joseph Koch 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 George Joseph Koch artwork?
Yes. Appraisily can review photos, dimensions, signatures, condition, provenance, and comparable market data to prepare a current valuation.