In a message dated 12/2/2005 11:51:57 PM Eastern Standard Time, [email protected] writes: > > I have one that reverted to being a flat sheet. It is amazing, they seemed > to have perfected the celluloid record surface, volume and not much surface > noise. > ********** at one point, inventors Balm and Harris had contemplated inserting collapsible celluloid cylinders in boxes of cereal, to be reconstituted by placing a core within, after opening. None of these have been found, but there was such a brown celluloid shell placed over a wax center, a merging of the two methods.
Many of the technical details (and patents) on the development of indestructible cylinders can be found in PHP. Allen www.phonobooks.com
