S-YYXXX or YY XXX
In this era, serial numbers were often simple sequential digits (e.g., 4 or 5 digits) that tracked total production. These are difficult to date precisely without checking official Morris Guitar Catalogues . morris guitar serial numbers
The name "Morris" itself comes from founder Toshio Moridaira's nickname, given to him by an employee at the Gibson factory in 1964. Because Morris produced everything from affordable entry-level guitars to professional-grade instruments, serial numbers are the primary way for collectors to verify if a guitar was "Made in Japan" at the famous Nagano factory. S-YYXXX or YY XXX In this era, serial