National Postal Museum
Parcel post rate indicator
c. 1914
This is a 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.
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