Mechanical Dial-O-Gram Balance, 310 g x .01 g

The Dial-O-Gram has a precision-engraved dial to make readings fast. After approaching the weight by sliding the poise on the notched beams, you dial-in the precise weight -- to a hundredth of a gram -- on the individually-machined vernier. Objects 10 grams and under can be weighed using only the dial.