- Sig Haugdahl in the Wisconsin Special
- Photographed on April 7, 1922.
- Sig Haugdahl in the Wisconsin Special, powered by a Wisconsin Aviation motor that had been purchased by J. Alex Sloan just after WWI. In this car Haugdahl was the first man to go 180 mph on April 6, 1922.
- 1 photonegative - b&w - 4 x 5 in.
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