cover 6kr. Prussian blue (centred to lower left) with 3kr. rose on 1865 (15 July) 6kr. blue stationery envelope from Freiburg to London and readdressed to Dorchester cancelled by double ring d.s., showing variouns transit/arrival h.s. including "HEIDELBERG-BASEL" T.P.O. c.d.s. and London h.s. "1" (for redirection). M.19b, 18. Photo