Educational Aids : Spelling, Math, Geography, Science, and Music
Object ID:
2007.29.24
Title:
12" Metric-English braille ruler
Creator:
American Printing House for the Blind
Description:
12" Metric-English braille ruler; black plastic; .25" thick with tapers on both edges to the scales; graded in .25" increments on English scale and in 5mm increments on metric scale; zinc-plated steel caliper slide wrapped around body; "APH" cast on reverse.
Dimensions:
H-12 W-2.5 D-0.375 inches
Date:
ca. 1970
Made by:
American Printing House for the Blind
Place of Origin:
Louisville, KY
Collection:
APH Collection
Provenance:
APH introduced its metric-English ruler in 1970. The caliper had been a feature on APH rulers since 1965. Found in office of Jim Hill.
Credit Line:
APH Collection, 2007.29.
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Metric-English braille rulerMetric-English braille ruler