Xxylonite and ivoride objects, c 1862.
© Science Museum / Science & Society Picture Library
A collection of objects made of xylonite and ivoride manufactured by Daniel Spill. As well as two knives with ivoride handles, there is a hair comb in ivoride and xylonite. part of a xylonite necklace and a cravat pin with a red xylonite head. The small hand mirror is made of ivoride, as is the death's head handle, which was from Spill's own walking stick and was donated by his granddaughter. Ivoride and xylonite are made of celulose nitrate, a form of celluloid developed by Alexander Parkes (1813-1890) in 1855. Daniel Spil was Parkes' works manager and later independent manufacturer of his invention.