9 resultados para foil

em University of Michigan


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Federal Highway Administration, McLean, Va.

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Federal Highway Administration, Safety Design Division, McLean, Va.

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Federal Highway Administration, McLean, Va.

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Mode of access: Internet.

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On negative sleeve: DIAGRAMS WHICH BLIND CAN 'READ'--Diagrams embossed on aluminum foil by the Faximile visograph, now being used for experimental study at the University of Michigan, as they appear before the foil is removed from the machine. these diagrams have been enlarged four times over the size of the sheet of "copy" inserted in the visagraph. They are embossed so that the blind can follow them by touch rather than sight

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2 11/64 in.x 1 27/32 in.; gilded silver with niello and a glass cabochon set over a tinted foil

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2 11/64 in.x 1 27/32 in.; gilded silver with niello and a glass cabochon set over a tinted foil