paste-in
/ˈpeɪstɪn/adjective
Pasted in; inserted or attached by pasting; (of a scrapbook, etc.) containing blank pages on which cuttings or pictures may be pasted.
noun
A correction or illustration printed separately from the main text of a book and pasted to the margin of the relevant page.
Origin
Early 20th century; earliest use found in The Daily Chronicle. From paste + in.