• 1953

Hardware Description

This is the fully featured model in the 100 Series, featuring Back Transfer, Tens Carry, and a Control Register. Production started in 1951, and a total of 6079 machines of this type were manufactured until production ceased in 1954, and the machine was replaced by the very popular Model 239.
  • Model Number:

    139
  • Manufacturer:

  • Hardware Type:

    Calculator
  • Manufacture Year:

    1953
  • More Info: