That’s exactly what I mean!
Anything before 1970 is early for me.

The leaf spring main gear and shape of door is clue.
Could be 175 too.

No 175 ever came with the “omni-vision” rear window.
Cessna T-41s were mid -60s 172s with larger engines. (I don’t have my Cessna book at hand so I can’t give exact years) but this a.c. has the smaller teardrop shaped rear side window common to those years.

Circa 1968 and later 172s have larger rear side Windows that are a bit squared with a more vertical back edge.