It’s interesting when walking around to take a look and see if you can work out how long something has been in place. Some things are easy, a church or other public building may have a dedication stone; you can estimate how old a tree is from its size. How do you work out how long a shop front has been in place, without resorting to google street-view (if it even goes back far enough)?
The other day, I spotted this strip of tape around the bottom of the door in a local shop. I know the shop hasn’t changed significantly in at least 25 years, but I was surprised to see the 01-London telephone number on the tape – given that it went out of service in 1990, this shopfront is at least 35 years old.