Flour City Ornamental Iron Co. of Minneapolis was the original producer of Aluma Craft Boats. The company made architectural metal work in addition to boats when purchased in 1960 by Hupp Corporation for an exchange of stock worth about $2,650,000 according to a Nov. 14, 1960 article in the Wall Street Journal. At the time Flour City Ornamental Iron had three plants and 375,000 sq ft of manufacturing space in the Minneapolis area, $10 million in sales, but a net worth of $4.3 million. The company would be operated as a subsidiary of Hupp and boats produced nationally in Hupp plants.
The Aluma Craft division was sold in 1962 to Alpex Corp. of Rochester, New York for more than $2,000,000 listing as reasons the accelerated costs and trouble of improving distribution and marketing (August 14, 1962 Wall Street Journal).