Richard Henry Pratt requests permission to purchase a test set of lenses due to an increase in poor eyesight among students resulting from Grippe. Pratt notes that after a trial of the lens test kit over several weeks he is now satisfied that it is successful and will ultimately save students money on glasses.
Request to Purchase Lens Test Kit for Glasses
February 13, 1891
National Archives and Records Administration
RG 75, Entry 91, box 705, 1891-#6073