Red glass was common for tail lights, stop signs, and fancy drinking  goblets 
very early in the 20th century. The gold made it expensive, but red  balls 
were sandwiched between metal sheets with mirror reflector on the back  side and 
small holes over the balls in front and lights shining on the balls  
reflected the mirrors from behind and made a pretty effective stop or  hazard sign at 
night. Kids during the Depression used to pry those balls out and  prized them 
as marbles in street games. A red marble held hostage in a game of  pots 
might cost 20 Chinas or 50 common clays to be returned to the original  "owner." 
 
Ron May
Legacy 106, Inc.



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