'69 340

More than likely that is or is supposed to be a 9B347503, not 93347503 since it's a 69 block, and starting in 1969, the last 8 digits of the vin were stamped on engine, trans, and 2 places on the body shell. 9B would be model year 1969. B would be Hamtramck Assembly plant then the 6 digit sequence number would follow Appears double stamped like somebody screwed up doing it, then put the correct die in and stamped it again.