cover 1868 (24 Jun.) unusual and attractive printed envelope advertising "THE POSTMAN/PRICE TWOPENCE/147 Fleet-street, E.C." and showing the legend "The Sabbath was made for man. Why not for Postmen?", bearing 1864-79 1d. tied by London E.C. duplex cancellation and addressed to Hammersmith; some minor perimeter faults and trace of soiling. Photo