(Kelly of the Clue Crew stands with a melting tray at the Crayola Museum & Factory in Easton, PA.)  The makers of Crayola introduced dust-free school chalk; it was so successful that it won a gold medal at the 1904 World Exposition in this city
[DOC] [TLE] One of a Kind Attraction | Easton, Pennsylvania 18042 ... [PAR] Crayola Experience is where the magic of Crayola comes to life!