細節
unmounted mint Block Larger Than four 1914 (Apr.) 2Mk. blue on greenish, 2Mk. grey-blue on bluish and 2Mk. deep blue on magenta and 1917 (Feb.) 2.40 Mk. black on light green, complete booklets with all panes and interleaves; some panes with trimmed perfs. and traces of toning and two with slight rusting caused by staples. MH 5a - c, 6; D.M. 3650. Photo