CHS, , JM, CLOVER and CHS all shown in TGT as unknown
JVC, VTE, JMS, BL, DS, L not in TGT
BMR (MANDARIN, INC) not in TGT
PLAIN HC was the NYC Harmony Club but that doesn't look to be that chip.
MAB was the initials used by Mather AFB, Calif. but TGT shows that it is a hub chip
K = TGT table says unknown but that TRKing had four cards with the K in a sc&d mold.