Cite

Untitled [Envelope with faux stamps and postmark]

MLA

Steinberg, Saul, 1914-1999. Untitled [Envelope with faux stamps and postmark]. Box 76, folder 1446. 1980. https://collections.library.yale.edu/catalog/16855945.

APA, 6th edition

Steinberg, Saul, 1914-1999. (["Box 76, folder 1446"])(1980)[Untitled [Envelope with faux stamps and postmark]]. https://collections.library.yale.edu/catalog/16855945.