It was an all-star commercial property lease in November 1967. The Univac division of Sperry Rand (now known as Unisys), then a manufacturer of mainframe computers, signed a ten-year, $1.5 million lease with Marina City.

Sperry Rand was represented in negotiations with Marina Management Corporation by Arthur Rubloff & Company. Arthur Rubloff (1902-1982) was a developer who in 1947 named a stretch of North Michigan Avenue the “Magnificent Mile.”

Univac was moving from a location, oddly enough, on Michigan Avenue. Its data processing and federal systems divisions would occupy space on the west side of the office building.

(Left) Univac sign is visible in lower left corner of west face of office building at Marina City, in an area presently occupied by BIN 36 restaurant. (Above) Chicago real estate developer Arthur Rubloff.

(Left) 1956 print ad for Remington Rand Univac computer system. (Click on image to view larger version.)