cover 18kr. green (small crease) slightly by 3kr. rose also 1kr. black on 1867 envelope (opened-out and split along fold at foot) from Heidelberg to Cincinatti, U.S.A. cancelled by small double ring d.s. and showing "HAMBURG PACKET /PAID/3" c.d.s. in red adjacent; overall soiling nevertheless a very rare franking. M. 21a. 18,17a. Photo