60    ALL                 01APPLICABLE TO ALL MODELS
60    OP                  01OPTIONAL EQUIPMENT
60    ONLY                01ONLY
60    EXC                 01EXCEPT
60    INC                 01INCLUDING
60    METRIC              01The part is designed in metric system. Parts (mostly60    METRIC              02in body sections)modified in and /or after july,197560    METRIC              03are standardized in metric system in place of the fo60    METRIC              04rmer inch dimensions. The sign METRIC is a key to th60    METRIC              05e distinction of this change.
