Newton's face-of-note calculator, showing the face of the note which when discounted at 4, 5, 6, 7, 8, 10 and 12 per cent, on the basis of 360 days per annum, will give net proceeds of any amount from $1.00 up to $10,000.00, for 1 to 360 days, and for even months up to 12 months, and for days from 1 to 30,

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These materials must be viewed onsite in the Special Collections Reading Room.

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