These often use a date-stamped format inside the guitar. For example, a stamp like "062501" can translate to June 25, 2001 .
On a Morris guitar, the serial number and model designation are typically found in three locations: The Paper Label morris guitar serial numbers
Morris Musical Instrument Co. formally restructured under . During this period, serial numbers became less standardized, often just a batch number. Many guitars from this era have no serial number at all (only a model stamp). These often use a date-stamped format inside the guitar
: The "Vertical Morris" logo (similar to Martin's) generally denotes 1970s production, while later models might feature more modern, stylized scripts. Made in Japan Sticker formally restructured under
Early Morris instruments (and those branded as Moridaira) often utilized simpler, sequential serial numbers or dated stamps that do not conform to the later algorithmic patterns. These numbers are often 4 or 5 digits with no date code embedded. Dating these instruments requires cross-referencing with physical features (see Section 3).
Note: Some use first two digits as year: 78xxxx = 1978.
