F. Ziegler Embryonale plaster modellen.
Two plaster models made by Friedrich Ziegler beginning of the 20th century. Two human embryos in the second month of the development of the featus by Prof. Dr. A Ecker. They belong to a set of 5 models which give an External form from the third to the eight week of pregnancy. The two are the last two of the set and have a magnify 8-9 times. Made by the original mold and in good condition. 17 cm high