7 Kreuzer
on piece 7Kr. blue, four shades all with enormous margins, one from the lower right corner of sheet, another from the right of sheet, on separate pieces and tied by different cancellation types. An exceptional quartet. M.21. Photo
细节
on piece 7Kr. blue, four shades all with enormous margins, one from the lower right corner of sheet, another from the right of sheet, on separate pieces and tied by different cancellation types. An exceptional quartet. M.21. Photo