Iris botanical plate of the nineteenth century signed Turgas

Real french botanical board late nineteenth century. Representation of iris flowers signed jules sette del. Entries: signature: jules sette del. Study of iris drawn from nature; n°33. Paris at mrs. Vve turgas rue saint-jacques. No. 6. Raised stamp: at industrial arts (?); mrs. E. Julienne; paris; st boulevard (?) Many traces of time and use. Measures: 35.5 X 27.5 cm / 13.97 X 10.82 in.