This the one readily avaible to me that I use.
That's the common one. The other style rolls back in before hitting the floor.
https://www.brosco.com/uploads/Literature/BroscoBOD/2018BOD.html#page=696
That's a good one too. It curves back.
When I get back to one of my clients I'll get a picture of theirs. That one is a full Scotia running flush from the floor to under the base. Like the floor is continous.
Maybe Abit before I get there though.
I had another client with a mid fifties ranch. That one had bullnose plaster rolled on to the door jams and the base boards were 3/8" ply fastened to the bottom plate with the plaster stopping on top with a square edge. No shoes, too contemporary for that. I redid a few bathrooms rebuilding that detail. I always wanted them to paint the base black...they since have moved on...
Love millwork details.
U
3/4 of the way down the page on the left, B-2007