Heligoland 1867 to 1876, #9 / #21, a used group of five stamps, Scott value $817, subject to inspection, these appear genuine, f-vf (Image 1) (Image 2) (Image 3) (Image 4) (Image 5) (Image 6) (Image 7) (Image 8) (Image 9) (Image 10)

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Est. US$50-80