It Wasn’t until the invention of springs that something like the fashionable day pinball desk was established. The introduction of coin operation permitted early pinball machines to become monetized, but the greatest step forward in pinball arrived from introducing electrical power, flipper bats and lights. ​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​... https://issuu.com/articles/47328175