Appraisal Days

Auctioning art professionally: Attend the Lempertz Expert Days for advice

At the beginning of each auction season, the so-called Expert Days are held where the specialists from each department travel not only to our representative offices in Berlin, Munich and Brussels, but also throughout Germany and Europe.
If you are interested in having an artwork valued, our experts are pleased to provide a non-binding consultation. Whether silver, Old Masters, classical modern or contemporary art, photography, Asian or African art – we will inform you how you can successfully sell your objects with us. We also have extensive experience with the sale of entire collections and are happy to advise you.
Visit our Expert Days at one of our international locations – we look forward to working with you!

Cologne

You can arrange your individual valuation appointment with our experts all year round at our Cologne headquarters.

Details

Berlin

Jewellery & Watches	11 September 2024 Details
Old Masters, Decorative Arts, Jewellery & Watches	11 - 12 September 2024 Details
Modern and Contemporary Art, Photography, Asian Art	26 - 27 September 2024 Details

Bremen / Hannover

All departments

by appointment Details

Brussels

Asian Art, Photography	11 - 12 September 2024 Details
Jewellery & Watches	13 September 2024 Details
Old Masters, Modern and Contemporary Art, Photography	10 – 13 September 2024 Details

Knokke

All departments

22 - 23 August 2024 Details

London

All departments

by appointment Details

Frankfurt

All departments

3 September 2024 Details

Hamburg

All departments

10 September 2024 Details

Karlsruhe

All departments

by appointment Details

San Francisco

Contemporary Art

26 – 29 July 2024 Details

Munich

Old Masters, Decorative Arts	16 - 17 September 2024 Details
Jewellery & Watches	18 September 2024 Details
Modern and Contemporary Art, Photography	19 - 20 September 2024 Details
Asian Art	23 - 24 September 2024 Details

Milan

Decorative Arts, Silver	5 - 6 September Details
Jewellery & Watches	16 - 17 September Details
Modern and Contemporary Art	10 - 12 September Details
Asian Art	18 - 19 September Details

New York / Boston

Contemporary Art

5 – 8 August 2024 Details

Saarbrücken

All departments

by appointment Details

Zurich

Asian Art	by appointment Details
Modern and Contemporay Art	19 - 20 September 2024 Details

Stuttgart

All departments

by appointment Details

Amsterdam

All departments

by appointment Details

Name	Purpose	Lifetime	Type	Provider
DSID	Google: Security, Functionality, Advertising for AdSense, Campaign Manager, Google Ad Manager, Google Analytics, Display + Video 360, Search Ads 360	2 weeks	HTML	Google
test_cookie	Google: Functionality for AdSense, Campaign Manager, Google Ad Manager, Google Analytics, Display + Video 360, Search Ads 360	15 minutes	HTML	Google
IDE	Google: Advertising for Campaign Manager, Display + Video 360, Google Ad Manager, Google Analytics, Search Ads 360	24 months	HTML	Google
FPLC	Google: Analytics for Google Analytics	20 hours	HTML	Google
FPID	Google: Analytics for Google Analytics	2 years	HTML	Google
GA_OPT_OUT	Google: Functionality for Google Analytics	7 years	HTML	Google
__utma	Google: Analytics for Google Analytics	2 years	HTML	Google
__utmb	Google: Analytics for Google Analytics	30 minutes	HTML	Google
__utmc	Google: Analytics for Google Analytics	session	HTML	Google
__utmt	Google: Analytics for Google Analytics	10 minutes	HTML	Google
__utmz	Google: Analytics for Google Analytics	6 months	HTML	Google
__utmv	Google: Analytics for Google Analytics	2 years	HTML	Google
_ga	Used to distinguish users.	2 years	HTML	Google
_gat	Used to throttle request rate.	1 minute	HTML	Google
_gat_--custom-name--	Google: Analytics for Google Analytics	1 minute	HTML	Google
_gid	Used to distinguish users.	24 hours	HTML	Google
_ga_--container-id--	Persists session state.	2 years	HTML	Google
_dc_gtm_--property-id--	Used by DoubleClick (Google Tag Manager) to help identify the visitors by either age, gender or interests.	1 minute	HTML	Google
_gaexp	Google: Analytics for Google Analytics, Optimize	93 days	HTML	Google
_gaexp_rc	Google: Analytics for Google Analytics, Optimize	10 seconds	HTML	Google
_opt_awcid	Google: Analytics for Google Analytics, Optimize	24 hours	HTML	Google
_opt_awmid	Google: Analytics for Google Analytics, Optimize	24 hours	HTML	Google
_opt_awgid	Google: Analytics for Google Analytics, Optimize	24 hours	HTML	Google
_opt_awkid	Google: Analytics for Google Analytics, Optimize	24 hours	HTML	Google
_opt_utmc	Google: Analytics for Google Analytics, Optimize	24 hours	HTML	Google
_gac_--property-id--	Contains campaign related information for the user. If you have linked your Google Analytics and Google Ads accounts, Google Ads website conversion tags will read this cookie unless you opt-out.	90 days	HTML	Google
AMP_TOKEN	Contains a token that can be used to retrieve a Client ID from AMP Client ID service. Other possible values indicate opt-out, request in progress or an error retrieving a Client ID from AMP Client ID service.	1 year	HTML	Google

Name	Purpose	Lifetime	Type	Provider
GoogleMaps	Is used to connect to Google Maps and to display those maps.	none	Connection	Google
_gali	This cookie is used by Google Analytics. It is used to anonymously record the clicked elements within a page.	0,5 minutes	HTML	Google

Name	Purpose	Lifetime	Type	Provider
YouTube	Is used to connect to YouTube and to display videos.	none	Connection	YouTube
1P_JAR	This Google cookie is used to optimize advertising to deliver ads relevant to users, improve campaign performance reports, or to prevent a user from seeing the same ads multiple times.	1 months	HTML	Google
CONSENT	This cookie stores the preferences and other information of the user. This includes in particular the preferred language, the number of search results to be displayed on the page and the decision whether or not to activate the SafeSearch filter of Google.	18 years	HTML	Google
NID	These cookies store user settings and user information for Google Maps.	6 months	HTML	Google
DV	These cookies store the preferences and other information of the user. This includes in particular the preferred language, the number of search results to be displayed on the page and the decision whether or not to activate the SafeSearch filter of Google.	5 minutes	HTML	Google