The doorbell at the front door has been lost but this is the bell press for the door to the old scullery at the side of the house. The coal man and perhaps the rag and bone man would have used this bell. Mark also suspects that other servants would have used this door as well.
This is the bell at the side door closer to the front of the house at the tradesman’s entrance. The tradesman’s entrance is adjacent to the original kitchen and there is also a door leading from this area into the main part of the house. This was the door for deliveries of meat, fish, fruit and vegetables for the kitchen as well as for use by ‘respectable’ tradesmen who needed access to the house.
As for the front door, this would have only been used for visitors to the house of the same social rank as the middle-class family who lived here in Edwardian times. Of course, in this country, everyone knew which class they belonged to and therefore which doorbell they had to press.