Found a rather strange set from Germany, 1928. The man in his plus-fours seems to be in charge, women help and join in!
They have been coloured, as often happens. People could buy pens to do it. I have the same set in sepia, but these make a nice change…
There are 17 of them and Can be found here…
…https://www.spanking-emporium.co.uk/spanking-emporium/?p=19844
Why not stay a while and browse my many vintage spanking sections, there are thousands of photos.
Asa