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  • 12-in safety edge

12-in safety edge

12-in safety edge

Date: before 1987
Inventory Number: 2014-1-0103
Classification: Drafting Aid
Subject:
drafting,
Seller: Charrette Corporation (1964 - 2006)
Dimensions:
3.4 × 30 × 9 cm (1 5/16 × 11 13/16 × 3 9/16 in.)
box: 4 × 36.8 × 9.5 cm (1 9/16 × 14 1/2 × 3 3/4 in.)
Material:
cardboard, metal,
Description:
2 safety edges including 1 in original packaging
In Collection(s)
  • Charrette Corporation and Lionel Spiro
Signedon safety edge: SPIRO

Inscribedon box: (illustration on the left) 12" / safetyedge (R) / A uniquely designed tool / that assures accurate and / accident free cutting! / (Patent pending) / Manufactured by Brownstone Products, Inc., Atlanta, Goergia
on side of the box: S
FunctionThese safety edges provide a straight edge for drafting and a safe straight edge for cutting.
Curatorial RemarksThe safety edge marked "Spiro" was Lionel Spiro's own personal copy. Brownstone Products in Atlanta were a company owned by Charrette, who also cast scale model figures for Charrette.
ProvenanceLionel Spiro, Brookline, MA; Gift to CHSI, 2014.

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The Collection of Historical Scientific Instruments
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