My old scale machine

This is an old scale machine that i own since 1984. I found it in the farmacy store that i started to work and since i become the owner of the store this scale machine came to my hands. You can put a coin in the slot to start the measurement and you take the results of the measurement printed on paper. The manufacturing company is from germany (P.KLEIN&CO) but i cant find anything about the age of the scale.