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Stick with numerals burnt or stamped in and highlighted in black; marked on both faces with seven lines each broken into varying lengths and numbered at intervals; each line begins with one and is broken into progressively smaller sections, the largest number being 50.
parallel rules (drafting tools)
Original to Sayward-Wheeler House (York Harbor, Me.),
Weights & Measures T&E
1.438 x 0.438 (WxD) (inches)
Gift of the heirs of Elizabeth Cheever Wheeler