Talking about 1807 pennies, I've just managed to obtain this 1807 restrike proof, P1354, R98.
Plain edge and has the characteristic rust spots heavily concentrated on the King's face and neck. Of course the rust is largely due to the dies being out of use for many years, decades in fact, when Taylor bought them in 1848, possibly by default with some scrap metal, and started producing various "proofs" from legitimate, genuine dies, albeit somewhat aged, from his workshop in Red Lion Street, London. All really interesting stuff.