Jiffy-Way Egg Scale  Owatonna, green

This example was made after 1953, the year the counterweight was changed to a steel cylinder with an adjustment screw to ensure accuracy (see photo of back). It was produced for several decades. In 1948, Jiffy-Way was sold to its second owner, C. C. Jolly Co. of Owatonna, Minn., who made this example.

This scale is designed to weigh and grade chicken eggs from small to extra large. A decal shows normal graduation of 18–30 oz (ounces) per dozen and 1½–2½ oz each egg with a rainbow of size labels.

The scales come painted in red or green.

This is a half-roberval and pendulum scale with a screw to adjust the pendulum speed.

The patent was by Benjamin Zimmer of Minneapolis. The patent number was printed on Jiffy-Way scales for many years after it expired; so, it is not much help in dating an item.

References:
See Exhibits > What Is an Egg Scale?
For more information about company history, go to Maker Histories > Jiffy Way