Cite

Photographs from envelope labeled "Gallery overflow (not identified) v. 3"

MLA

Ewing, Max. Photographs from Envelope Labeled "Gallery Overflow (Not Identified) v. 3". 1928. https://collections.library.yale.edu/catalog/32307513.

APA, 6th edition

Ewing, M. (1928). Photographs from envelope labeled "Gallery overflow (not identified) v. 3". https://collections.library.yale.edu/catalog/32307513.