Yes, 1975. My records say Hobie 11 based on the "N", but maybe a 13' Hobie 3.5? Also, wooden rudders would make sense.
https://sailboatdata.com/sailboat/hobie-35The HOBIE 3.5 is based on the HOBIE 14 but designed for kids weighing less than 140 lbs. The hulls appear to be the same as the HOBIE 14, with other parts shared with the MONOCAT 12, including rudders, mast and mast step. The boat had wooden rudders with a different rudder casting locking system. It was also considerably narrower which, in theory, allowed easier righting after a capsize.
If a 3.5... we have no parts. Discontinued in the 70's.