Scientific Data Systems, Inc. - Various Denominations Specimen Bond

$5,000 Aqua, $1,000 Orange 5 1/2% Specimen Bond printed by Security-Columbian Banknote Company. No denomination on Brown or Olive. Please specify color.

Scientific Data Systems (SDS), was an American computer company founded in September 1961 by Max Palevsky, Arthur Rock and Robert Beck, veterans of Packard Bell Corporation and Bendix, along with eleven other computer scientists. SDS was the first to employ silicon transistors, and was an early adopter of integrated circuits in computer design. The company concentrated on larger scientific workload focused machines and sold many machines to NASA during the Space Race. Most machines were both fast and relatively low priced. The company was sold to Xerox in 1969, but dwindling sales due to the oil crisis of 1973–74 caused Xerox to close the division in 1975 at a loss of hundreds of millions of dollars. During the Xerox years the company was officially Xerox Data Systems (XDS), whose machines were the Xerox 500 series. Read more at https://en.wikipedia.org/wiki/Scientific_Data_Systems