Help identifying year/model of Columbia muscle/banana bike

[mpdoan2]

Hello!
Looking to see if anyone could help identify the year/model of this Columbia banana bike. It does have a serial number, 60273 51, no letters, and anything I find online doesn't match.
Thanks in advance!
Mike

 

[49autocycledeluxe]

1976?

 

[mpdoan2]

Yes; someone PM’ed me and said that. Never even dawned on me to match the paint scheme with ‘76, although as soon as it was said it made sense. Thanks!