Contact

Email us at hello@themarkindex.com.

Corrections

If an entry is wrong, tell us which one and send the source that shows it: a museum record, company history, collectors’ society reference or auction catalog. Corrections that come with a source are checked, and the entry’s updated date changes when we fix it.

Identifying a piece

We can’t appraise, value or authenticate items, and we can’t identify pieces from photos sent by email. The Mark Finder and the guide to researching unmarked pieces are the best places to start.