Quote Originally Posted by smythe View Post
Horn smells like burnt hair when heated (really stinks).

Celluloid smells like camphor (moth balls) when rubbed, sanded or washed in warm water… also a few with built in wedge or glued to form a “one piece” scale.

Bakelite, a pungent (formaldehyde) odor when heated or sanded. When polished with MAAS or other strong polishing compounds the cloth will usually be stained brown.

Examples exist of all thee materials with “built in” wedge.

Hope this helps.
+1 ~ Right on the money.

Also be careful with heat & celluloid. It tends to ignite easily.