This is a very rare 1960s oversized lifelike model of a Dissected Frog by The Welch Scientific Company, Chicago, who were established in 1880. It shows on one side the external limbs and on the other the internal structure of the Frog. This plaster finished model shows age old damage and repair but on the whole a very good looking vintage model. It measures 49 x 37cms and is stamped 10 31 9493 on the back. A beautiful and unusual model.