CR-239 OXFORD 2-min INDESTRUCTIBLE Cylinder: UNCLE JOSH'S INVITATION TO HIS FARM, #921. Stewart. Original Box and Lid. Oxford cylinders have a metal core, are 'indestructible', and can be played on Edison and Columbia cylinder phonographs. Record condition therefore is 9+, where 10 is mint and 0 is trash. These cylinder records are hard to find and are very collectible.