This is the material used for the outside body work, a kind of plastic also used for billiard/pool balls: https://en.wikipedia.org/wiki/Phenol_formaldehyde_resi

This is the material used for the outside body work, a kind of plastic also used for billiard/pool balls: https://en.wikipedia.org/wiki/Phenol_formaldehyde_resin https://en.wikipedia.org/wiki/Phenol_formaldehyde_resin and https://de.wikipedia.org/wiki/Phenoplast#Verwendung https://de.wikipedia.org/wiki/Phenoplast#Verwendung