The old Fender serial number scheme did not change immediately as CBS to use up existing parts and use existing tooling however a large F logo was added to the neck plate shortly after the accquisition.
SERIAL NUMBERS and APPROXIMATE PRODUCTION DATES 1965 to 1976 In 1982 the Vintage Series of guitars was introduced.
The larger one is the serial number, and the part after the "H" letter is the model number.
Our serial number guide shows approximate date of manufacture.
When [Crissie Rhodes and I] first got together we couldn’t have dreamed of achieving everything we have so far, and especially so quickly.