FRESNEL'S MIRROR APPARATUS FOR INTERFERENCE DEMONSTRATION by V. FRIC
10-008. Czechslovakian, early 2nd quarter 20th century, with a trade label on the base for "V. FRICK v PRAZE." The mirror assembly is made of polished lacquered brass, holding two 3" x 2" black ground mirrors and mounted on a brass rod in a turned black painted wood base, 13 1/8" tall overall; one of the mirrors is fixed by two screws, the other is adjustable by a single screw. Designed for classroom demonstration of light wave interference, this attractive Fresnel's mirror apparatus is in fine overall condition
