Description: These devices were, and still are, used to make precise measurements in fractions of a millimeter for the purpose of symmetry in many types of facial and craniofacial surgery. In surgical procedures of the eyelids, for example, the distance between the lash line and the crease of the eyelid is important in treating illnesses such as congenital or senile ptosis.
Origin: Circa 1920-1930s; Germany
Manufacturer: Palo-Meyers Inc. & Original Helios