Cite

Armour of Francis the 1st [art original].

MLA

Harding, G. P. (George Perfect), 1780-1853, artist. Armour of Francis the 1st [art original].. [not after 1824]. https://collections.library.yale.edu/catalog/16193433.

APA, 6th edition

Harding, G. P. (George Perfect), 1780-1853, artist. ([not after 1824])[Armour of Francis the 1st [art original].]. https://collections.library.yale.edu/catalog/16193433.