2 1/2 Dollar imperial yacht watermarked with right margin of sheet on piece, centric cancellation single circle postmark \"TSINGTAU 16 . 4 10\", faultless condition, decorative on piece in outstanding quality the sought-after stamp, photo expertize Steuer BPP: \"the key value the Ship edition in dollar exchange watermarked possesses, the prescription accordingly, two cancellations with all features of an authentic and date-appropriate cancellation. The very fine submission. \", Michel 600.- plus