We present to you a Rare Vintage Measuring Line - Calculator from the 90's. The line is 8 inches/20 cm/ long and 2 inches/5 cm/ wide. On one side there is a scale in cm, on the other - in inches. The ruler is a simple electronic calculator, as you can see from the picture of the buttons. It was produced as an advertisement for some company.
condition: very good, working. Needs a new battery.