1 1/2 Dollar imperial yacht, unwatermarked with 26: 17 perforation holes, centric cancellation single circle postmark \"TSINGTAU a 28 / 4 06\", very well perforated, except for one small thin spot place in the fold region faultless, attractive piece of the rare stamp, expertized Stolow, Steuer BPP and photo expertize Jäschke L. BPP, Michel 2.000.-