SERIAL NUMBERS and APPROXIMATE PRODUCTION DATES 1950's to 1964 In early 1965, Fender was sold to the CBS.
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.
Please note that fender serial numbers tend to overlap by at least a year, and thereby the date of your guitar can only be approximated.
Fender began producing instruments in its Ensenada, Mexico, factory in 1990.
It therefore appears as though the the S in ICS is only an indication as to whether it is a Factory Special Run or FSR guitar (manufactured by Cor-Tek in Indonesia). The reason they need to do this is because FMIC and the international Fender/Squier distributors have different warranties and totally separate support systems including service centers.A new serial-numbering scheme was adopted toward the end of 2009 using the number “10” as a prefix, followed by a space, followed by seven digits.The “10” prefix was designed to identify the first year of the second decade of the new millennium, and while it appears on the instrument decals, it was not captured in Fender’s operating system.SERIAL NUMBERS and APPROXIMATE PRODUCTION DATES 1965 to 1976 In 1982 the Vintage Series of guitars was introduced.The vintage series used a "V" prefix in serial numbers.