Wednesday, April 21, 2010
A highly flammable plastic-like substance, Celluloid was invented in the mid-19th century, and used as an ivory substitute in making everything from picture frames and fans to toiletry items and jewelry. Ivory colored celluloid with striated lines, is known as "French Ivory." Celluloid is still used today to make items like ping-pong balls and guitar picks. You can test celluloid by rubbing it. It should give off a distinctive camphor odor (like mothballs).