backstamping
/ˈbækˌstæmpɪŋ/
noun
- The act or process of marking the back of something (such as a book, document, or product) with a stamp or label for identification, date, or origin.
- Backstamping on antique furniture can reveal the manufacturer and year of production.
- The museum curator noticed a faint backstamping on the back of the painting.
- The backstamping of library books helps track when they were added to the collection.