American Birch Plywood Wooden Pirate Cutlass, 18 inch Geology running on mains or battery

running on mains or battery with a 15 by 17 cm pan for routine weighing in classrooms and stockrooms

using a 5cm sphere with detachable hemispherical cups that lift away to test for residual charge

this apparatus pairs two 8-inch polarizing filters in a wooden frame with four acrylic shapes that show photoelastic patterns when squeezed

the f/3 curvature stretching the focal throw for demos that need the focal point set comfortably beyond the mirror face

Plain-end single cone adapter in borosilicate 3

American Birch Plywood Wooden Pirate Cutlass, 18 inch Geology running on mains or batteryBirch plywood wooden pirate cutlass measures 18 inches long for costume play, theatrical props, and imaginative costume accessories.