Hi, it's likely a 1992. S is the factory code. Would help to know the country of manufacture and model. Go see my serial number database which covers 39 manufacturers:
https://www.stillkickinmusic.com/blogs/still-kickin-blog/the-serial-bowl#epiphone
This is most likely the serial scheme for your guitar:
FYYMRRRR
F = factory ID
YY = year of manufacture
M = letter code to corresponding month (A=January, B=February, etc...)
RRRR = ranking number
Example: R01B0123 = Peerless Korea / 2001 / February / unit 0123.