It's fairly obvious to see why these cards were printed and bought, but something which intrigues me however is the vast number of vintage postcards of what I'll call "ordinary" people, either as individuals or family units.
At first I thought these were just photographs, but they are actual postcards. I've come across everything from a smartly dressed lady on a bicycle, to a serious looking family, dressed in their Sunday Best on their front lawn.
Unfortunately none of those I have are written, so there's no additional detail which may explain the cards further, but the pictures themselves do offer a fascinating glimpse into our social history.