Plastic Town | Science History Institute
09/10/2015· Horse power, water mills, and special “twinners”—which easily cut two interlocking combs from a single piece of horn—all became commonplace in Leominster Combs progressed from a luxury item to a household product Then the horn supply ran dry Its replacement, of course, was plastic In the late 19th century new inventions, such as vulcanized rubber and celluloid, started to crowd out