1922 Cover Profilometer Public Roads Bicycle Springfield Illinois Highway SCA3 VN1 and was displaced by the

and was displaced by the Carnegie

piano making

Forbes Robertson ("The Passing of the Third Floor Back")

This is an original 1925 one color print ad for Kinograms --"The visual news of all the world

This is an original 1875 black and white steel engraving of a portrait of Thomas Wentworth

1922 Cover Profilometer Public Roads Bicycle Springfield Illinois Highway SCA3 VN1 and was displaced by thePlease note that this is a cover only. This is an original 1922 color cover for Scientific American featuring an image of two men using a profilometer, which was an instrument that was used to measure the roughness of the highways. It is shown here testing the roads near Springfield, Illinois. CONDITION This 89+ year old Item is rated Very Fine +++. Light aging throughout. Light wrinkling. No natural defects. No surface rub. No tears. No water damage.