• Huge lot of vintage car key blanks. These are gold plated blanks from First Federal Credit union. There are 5 different types of key blanks in this lot. Code M-1-1 fits 1971, 1972,1975, 1976, 1967, 1968 GM products. Code M0 fits 1970, 1974, 1978 GM products. Code M9 fits 1969, 1973 GM products. F3 fits all fords from 1966 up except 1966 mustang, fair lane, come and Lincoln.Code C4 fits all chryslers from 1956 up. These keys are NOS in the original bags. There are over 12 lbs, meaning several hundred keys. If you sell these at 2.00 a pop you will make some huge money.