4 turtle drawings (2 top and 2 bottom views) (Cambridge, Mass., May 1852 and May 1854), Jacques Burkhardt, 1852-05-??

Taxonomic classification: animalia. Common name: turtle. Specimen collection date: 1854-05-?? Date: 1852-05-??. Dimensions: 18 x 26 cm.. Medium: watercolor on paper. Collection: Harvard University. 4 turtle drawings (2 top and 2 bottom views) (Cambridge, Mass., May 1852 and May 1854)