Archives Catalog Entry
Keuffel and Esser Paragon Engineers' Rule
Keuffel and Esser Paragon Engineers' Wooden 12" Rule, ca 1960, 30 & 60 scale.
Housner, G. W. (George William), 1910-2008 (Engineer)
Jan. 1, 1960
MEDIUM: Wood; LENGTH: 12"
Topics: Civil Engineering
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