Advertising Poster Postman Poole Harbour Post Office David Cobb. Original vintage advertising poster issued by the General Post Office to encourage public to use the correct postal address featuring an artwork by David Cobb, R.O.I., S.M.A. (1921-2014) featuring a view of a man on a boat with more boats moored and colourful buildings, the caption below reads - This is the Postman in Poole Harbour. The poster is missing a section with text at the bottom that should have identified the post code for the area in the image. Horizontal. Acceptable condition, tears, creasing, staining, pinholes, bottom edge trimmed. Country of issue: UK, designer: David Cobb, size (cm): 60x92, year of printing: 1960s.