The Prehistoric Post Office

 
    What kind of post office did cavemen use? 
    What did their stamps look like? 
    How did they design and make stamps? 

    If an artist made a 2D drawing/painting/print  
       would it be fun to use that as a blueprint to  
       assemble that scene? 
    What other stories about ficticious work could 
       explore in the same way? 

    These were the questions I was asking myself in 1979.