Alternate titles

Arrangement of seven crystals, possibly algae

Image size: h 8.9cm x w 11.4cm

Paper size: h 11.1cm x w 18.4cm

Object Type: Salted Paper Print

Inscription: pencil X recto; in pencil, verso, elaborate looped L

Watermark: tman ey Mill 42 [sic]

Watermark (expanded): Whatman Turkey Mill 1842

Owner: Smithsonian Institution

Object owner number: 1995.0206.299