Koch, Robert. 1843-1910. — auction results & prices

11results on record

88%sell-through

$2,223median result (USD, incl. premium; 100% observed, 0% estimated from hammer)

$7,040record in our coverage

Drawn from 11 recorded results (10 sold · 1 passed) across 3 auction houses, 2015–2026. What we cover

Median sold price by year typical estimate range median result USD, incl. premium; 100% observed, 0% estimated from hammer method · log scale

Where does a value land in this market?

The same figure also answers the seller's question: which house clears a work like this, and for how much — expected proceeds by house, from the sell-through the rest of this page is built on.

Every sold result for this market, low to high (log scale) — the dashed line is the median. Enter a value to see where it lands.

By medium where medium is recorded or stated in the catalog line

Medium	Results	Sell-through	Median result (USD)
other	7	86%	$2,148

Medium is recorded for 7 of 11 results (64%) — rows above cover that subset; the rest of the record is in the full ledger below.

Compared with Morgagni, Giovanni Battista. 1682-1771. Koch, Robert. 1843-1910. Morgagni, Giovanni Battista. 1682-1771.

Metric	Koch, Robert. 1843-1910.	Morgagni, Giovanni Battista. 1682-1771.
Median result	$2,223	$1,897
Record price	$7,040	$6,641
Results on record	11	21
Years active at auction	2015–2026	2004–2025

Where this artist sells best

House	Results	Sell-through	Median	vs. estimate
Bonhams	7	100%	$1,920	0.95×
Ketterer Kunst	3	—	$3,550	—
Hermitage Fine Art	1	0%	—	—

The same artist across every house we cover — hammer-vs-estimate side by side. A dash in the estimate column can mean withheld rather than unpublished: the house publishes no hammer price, or its printed low is a starting bid rather than an appraisal. Method →

Prices realized 11 recorded lots — sold, passed, and upcoming — results in USD incl. premium; est. marks a premium estimated from the house's schedule ✓ Includes 1 passed lots

Date	Lot	Estimate USD	House
11 realized prices on this page are locked. A Research Pass reads 50 of them for $19, once — buy a pass
2026·05	Eigh. Brief m. U. an Georg Gaffky, Bakteriologe, 1906	$3,494–$3,494	Ketterer Kunst
2026·05	Eigh. Brief m. U. an einen Regierungsbeamten, 1896	$1,747–$1,747	Ketterer Kunst
2026·05	2 Verträge (Farbwerke Meister Lucius & Brüning), 1892-1910	$932–$932	Ketterer Kunst
2024·06	Untersuchungen ueber die Aetiologie der Wundinfectionskrankheiten. Leipzig: F.C.W. Vogel, 1878.	$800–$1,200	Bonhams
2023·06	Die Aetiologie der Tuberculose. IN: Berliner Klinische Wochenschrift, volume 19, number 15. Berlin: Hirschwald, 1882.	$800–$1,200	Bonhams
2022·03	Autograph letter signed, 1887 About his colleague's work on pebrine and the donation of works on cholera to the Museum of Hygiene	$4,951–$5,501	Hermitage Fine Art
2020·12	Untersuchungen ueber die Aetiologie der Wundinfectionskrankheiten. Leipzig: F.C.W. Vogel, 1878.	$1,000–$1,500	Bonhams
2019·03	Untersuchungen uber die aetiologie der wundinfectionskrankheiten. Leipzig: F.C.W. Vogel, 1878.	$500–$700	Bonhams
2019·03	"Zur Untersuchung von pathogenen Organismen." Offprint from: Mittheilungen des Kaiserlichen Gesundheits-Amtes. Berlin: Norddeutsche Buchdruckerei und Verlagsanstalt, 1881.	$2,000–$3,000	Bonhams
2019·03	"Die Aetilogie der Tuberculose." Pp 221-230, [In:] Berliner klinische Wochenschrift, 10 April, 1882, Number 15. Berlin: Hirschwald 1882.	$1,000–$1,500	Bonhams
2015·09	Autograph Letter Signed ("R. Koch")	$1,500–$2,500	Bonhams

Realized prices are sold by the record: 50 for $19, non-expiring. Reading them at volume is what Starter is for.