Gaar-Scott & Co., was an American threshing machine and steam/traction engine builder based in Richmond, Indiana. The company built 'simple' and 'compound' engines in sizes from 10 to 30 horsepower. Farm machinery produced by the firm were advertised as part of "the Tiger Line" and used a tiger upon two globes as the company logo. It merged with the M. Rumley Co. in 1912 during a purchasing frenzy that put the later firm into insolvency. The company was reorganized as Advance-Rumely Thresher Company Inc. It did build a few gas tractors as well. However, the name eventually died out.
The Gaar Mansion, home of Abram and Agnes Gaar is a noted historic house in the state of Indiana today. The Gaar-Scott office building still stands in Richmond and is used by Richmond Baking.
The Advance-Rumely Thresher Company was later purchased by Allis-Chalmers Mfg. Co.
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