Those often purple-inked papers were fresh from the ditto machine, or spirit duplicator. Legend has it that not only did they smell good when they were still wet, inhaling the volatile organic ...

Those often purple-inked papers were fresh from the ditto machine, or spirit duplicator. Legend has it that not only did they smell good when they were still wet, inhaling the volatile organic ...

How many of these do you miss? Spirit duplicators, also known as Ditto machines, were created by Wilhelm Ritzerfeld in Berlin ...