1980 - smacked regularly, every week for sure!
Mother - nasty back handers around the face (only when my dad was at work), bare bum smacks in public, shiny moccasin slipper used or bare hand.
These would be for any percieved crime, back chat/tone of voice/not doing something fast enough - in hindsight she often lost her temper and lashed out.
The particular speciality though was to smack me, then I'd have the hysterical gulping uncontrollable crying, then if a threat of another smack didn't shut me up... head under the cold tap (in the sink when tiny, in the bath when bigger).
She was absolutely abusive, there were other things she did that i think were worse (more calculated and evil).
Father: slipper or wooden spoon (both named Oscar, no idea why) - major crimes like damaging stuff on purpose, doing super dangerous stuff - these were always pre-planned so 'at 6pm you are getting a smacked bum for... xyz' but sometimes 'you're both being smacked until whoever did it admits it'.
He has since apologised, its what his mother did - he also says (and fwiw, I do believe him) he had NO idea about the degree of mothers abuse, he only saw the odd bare bum smack when we'd really annoyed her and none of the rest of it.
So.. I dunno, was it normal, I think a fair bit of it was what everyone else was doing. At the time I had no idea that some of it wasn't, it certainly never occurred to me to tell anyone else, nor did it occur that other adults DIDN'T know what was happening to me or that it might be secret.. it just, was normal.