I have a co-worker who is mildly retarded and needs help finding a needle replacement (whole cartridge?) for a 1959 Westinghouse Stereophonic Model 56 4 speed (16 1/3, 33 1/3, 45 and 78rpm turntable. This is the only info that he gave me. He does not have a computer so I offered to help him. Can anyone help me help him? Thanks, Sharon