Refracting Telescope Kit, 1 Each

The Refracting Telescope Kit by United Scientific is a simple two-lens telescope with a plano-convex objective, a convex eyepiece, and two sliding 11-3/4 in cardboard tubes. It gives an approximate 16X magnification with an inverted image, comes assembled, and can be taken apart for study. Teachers use it in optics and astronomy units on lenses, magnification, and telescope history.