This aluminum dental dead is from the 1950’s and has the metal shroud pins where a rubber dental dam would be stretched over the mouth. The teeth set is probably from the mid 1960’s and has signs of dental schooluse. Typically the dental student would perform a procedure then hand in the teeth set for evaluation. The set is etched on the sides--teeth are removable via tiny screws on the tops and bottom. The topof the head is also etched with the number 13 and initials CC—most likely the community college . Comes with simple steel stand as shown. Last photo shows other heads we have listed individually on site.