126 NUMERAL FRAMES. … DESK NUMERAL FRAME. This frame is adapted to the ordinary primary desk, which is eigliteen inches long. A heavy wire is stretclied between two japanned iron supports, which are fastened to the desk at the extreme front, out of the way of all other school exercises, but within easy reacli of the…
Schools -- Furniture, equipment, etc. · Teaching Aids and devices
Internet Archive · Winterthur Museum Library · Public domain (published before 1931). Free to use for anything.