Just reading an Agatha Christie, and Miss Marple and an acquaintance are "pressing cakes on each other", and it occurred to me that I have often been puzzled by this in books set before about 1960- did people buy a whole plate of cakes? Did they pay for the plate, or what they ate? Or did the waitress bring a hostess trolley or tray over? It's just there often seems to be a selection, or discussion on who will have the last one; and in children's books, often a feeling of being stuffed afterwards. So how did it work?! It sounds much nicer than the 'order one cake each' we do now!