I’m not to familar with &70’s country music 8o.s and beynd I remeber better re Country & Pop/Light rock...
& I was really young in the 70’s but I’d be glad to help You search...right now I don’t know though.
“Daddy’s Hands?” just a pre search guess...not sure who sings it...oh yeah I think that was the Judd’s( My guess, I mean,LOL!)
I’ll go now & help You look...:)
The guy is singing about his wife’s hands. When they were young, middle aged, and when she became old. I still want to say Waylon Jennings but keep coming up empty. :(