Two Star table tennis balls Designer (Organisation) Halex Manufacturer Halex Date 1951 - 1959 (circa)
Crystalate billiard balls Designer (Person) Unknown Manufacturer Crystalate Manufacturing Company Date 1902 (circa)
GPO 312L telephone Designer (Person) Heiberg, Jean Bjerknes, Johan Christian Designer (Organisation) Ericsson GPO Manufacturer Siemens Manufactured for GPO Date 1954