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 Fig. 205. A 4-inch by 6-inch Card Suitable for Plotting a Curve for One Year by Months

A file of these cards allows instant reference to any set of facts relating to a large business. The forms are printed on especially high grade translucent paper or card stock. Duplicates, as desired, may be made by direct contact printing on blue-print or other sensitized paper. The photostat process can of course be used if desired.