1867, 9d brownish orange tied duplex "114 + DUNDEE JY 31 67" to entire folded letter to Pernau, Estonia/Russsia. Blue "Aus England / Aachen Franco 2/8", boxed "FRANCO" resp. oval framed "PD", on reverse transits London, Riga and arrival "PERNAU".
Die-proof printed in orange-yelloe on white glazed card
Panes
Wing margin stamps come from the center part of the sheet. In the pane shown above the left column of stamps have wing margins, There is no such thing as a straight edge perforated stamp in GB stamps.