25 pfennigs crown / eagle dark orange with inverted overprint "the Mariana Islands" from plate upper margin, position 6, unused, very fine, expertized, Richter among others, photo expertize Ronald F. Steuer BPP (2020) : "it is a authentic, steep, inverted overprint in the typically strength pressure of the only in Berlin issued curve. can in this kind as unique designates become" Michel 2.800.- for one stamp without upper margin, assessment for upper margin by Michel not listed