Important 20th Century Design 
3 December 2006
Important 20th Century Design 
137

model for IBM Building curtain wall study

USA, 1968
tinted plexiglass, enamel ¾ h × 27½ w × 14½ d in (2 × 70 × 37 cm)
estimate: $3,000–5,000
result: $2,880
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This 1/2" scale model was built in the shop at the office of Mies van der Rohe as a study for the curtain wall of the IBM Building in Chicago. The IBM Building is Mies' most technologically advanced structure, utilizing a dual-glazed insulated curtain wall.
provenance: Office of Mies van der Rohe, Chicago | Private collection, Illinois

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