"This apparatus set is used for the study of the reflection, refraction, and the mixing of colors. This set includes a color box which uses 12V. D.C./A.C. The front is for inserting in filters, and other equipments which includes:
-Plastic rectangular, triangular, and half-circle sticks
-2 convex and concave lens
-Flat, and half-spherical glass
-1 slit, and 3 slit in one sheet
-8 colors filter, 8 colored sheets"