Post Office Court, EC4

This is the wall of a little alley just off Lombard Street, where there is a little plaque which reads "Near this spot the General Letter Office stood in Post House Yard 1653 - 1666. Here were struck in 1661 the first postmarks in the world". I like to walk different routes between work and Cannon Street and often walk through this little alley and tonight was the night for blipping one of the stones because I forgot to change my lens from yesterday.