Shade guide for "Classic S" acrylic teeth, by Cottrell and Co., England, 1955-1970 Shade guide for "Classic S" acrylic teeth 1955-1970
Shade guide for "Astralit" acrylic teeth, by Dental Filling Ltd., England, 1950-1970 Shade guide for "Astralit" acrylic teeth 1950-1970