Parcel Post Rate Indicator
Parcel post rate indicator manufactured by J. K. Stewart Mfg. Company, Chicago, Illinois, is an octagonal-shaped instrument with two knobs, one at either end. Each side has two cut-out windows where information appears by turning the knobs to indicate proper postage by pounds and cents for various zones: local rates and zones 1 to 8.
This object is shown in the online exhibit only and is not on display in the museum.