Pair of German school original botanical watercolor, pen and ink paintings on paper depicting types of cacti, Stapelia Divaricata, Hirtella, Revoluta, Maculosa from Stapelia Genus collection. Circa early 19th century. Provenance: The Doyle New York: The Charlotte Moss Collection, March 7, 2013, lot # 5137. Please refer to the original paper labels on the front and back.