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adjustable triangle
adjustable triangle

adjustable triangle

Inventory Number2014-1-0206
ClassificationTriangle
Subject
    Dimensions20.5 × 18.3 × 1.3 cm (8 1/16 × 7 3/16 × 1/2 in.)
    Material
      DescriptionOne adjustable triangle
      In Collection(s)
      Signedon triangle: LINEX 1120-8T / DENMARK
      FunctionThis adjustable triangle allows the user to set their own angles for drafting.
      ProvenanceLionel Spiro, Brookline, MA; Gift to CHSI, 2014.
      draftsman's right triangle
      draftsman's right triangle
      American
      Date: circa 1855
      Object number: 5459d
      pair of right triangles with handles, 45° and 30°/60°/90°
      pair of right triangles with handles, 45° and 30°/60°/90°
      Object number: 2014-1-0199
      pair of right triangles with cm. ruler - 1 30°/60°/90° and 1 45°/45°/90°
      pair of right triangles with cm. ruler - 1 30°/60°/90° and 1 45°/45°/90°
      Object number: 2014-1-0201
      right triangle (broken)
      right triangle (broken)
      Royer
      Date: 1870-1920
      Object number: 1998-1-1654c
      draftsman's right triangle
      draftsman's right triangle
      American
      Date: circa 1855
      Object number: 5459e
      right triangle - 30°/60°/90°
      right triangle - 30°/60°/90°
      Charrette Corporation
      Date: 1976-2006
      Object number: 2014-1-0203
      small right triangle - neon orange, 30°/60°/90°
      small right triangle - neon orange, 30°/60°/90°
      Charrette Corporation
      Date: 1976-2006
      Object number: 2014-1-0204
      right triangle, metal, with inch ruler and circular templates
      right triangle, metal, with inch ruler and circular templates
      Date: 1991-1992
      Object number: 2014-1-0205
      right angle triangle
      right angle triangle
      Royer
      Date: 1870-1920
      Object number: 1998-1-1654b
      right angle triangle, isosceles
      right angle triangle, isosceles
      Royer
      Date: 1870-1920
      Object number: 1998-1-1654a
      set of three right triangles (large and small 30°/60°/90° and large 45°/45°/90°)
      set of three right triangles (large and small 30°/60°/90° and large 45°/45°/90°)
      Charrette Corporation
      Date: 1976-1992
      Object number: 2014-1-0200
      rotating adjustable slit
      rotating adjustable slit
      American
      Date: 1875-1900
      Object number: 2007-1-0532