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Keuffel/Esser Phi Delta Theta Signed Case Slide Ruler University Pittsburg 1930s:
$95.00
The product is a vintage Phi Delta Theta signed case slide ruler from the 1930s, originating from the United States. This collectible piece falls under the category of Engineering and Slide Rules, making it a unique and specific item for collectors interested in scientific and mathematical tools from the mid-20th century. The signature and association with the Phi Delta Theta fraternity add historical and nostalgic value to this piece. The case is signed University Pittsburgh, ACH, Cleveland Ohio.
Case school of applied science Cleveland Ohio.
