1. There are red double decker buses crossing Putney Bridge and no buildings in the background - as Tillerman worked out, that means it must be in the 50s. The sails are a red herring as they are likely to be from the Ranelagh Sailing Club that has been there since 1889 and its not possible to work out what class of boat they are
2. If you look on the back it says "Putney Bridge 1950s"
It also says its by Dick Lee who was part of the Camberwell School of Art. He loved the sea and during the war served in the Royal Navy Volunteer Reserve.
You can see more of his pictures here.
