Nerve operation on an animal (a horse?): four figures, including illustrations of instruments used in the operation. Etching, 1840/1870?

Unknown artist

Lettering: The nerve operation or neurotomy ; The tenaculum ; The nerve ; Operator's hand passing the needle under nerve ; The artery ; Artery ; The blunt pointed needle armed with thread to pass under the nerve ; The small hook or tenaculum ... for the same purpose ; Represents the proper knife for making the incision and dividing the nerve.