22.5.1807 call on Edwards, engr
Most likely engr was short for engraver (though engineer is possible). The only Edwards engraver I could find active in 1807 was William Camden Edwards (DNB 1777-1855) but he was apparently living in Bungay, Suffolk in 1807 and for most of his life. There was a Humphrey Edwards engineer at 3 Mill-st, Lambeth-walk in 1815 P.O. directory. Richard Edwards printer was at Red Lion-ct, Fleet-st from 1804 and later moved to 6 Crane-ct, Fleet-st till his death in 1829. But probably none of these