1900, 5 Pf. On 10 Pf. "diagonally overprint", 2 short teeth otherwise superb piece of letter, expertized Pfenniger (full signed), Michel 160.- (Image 1) (Image)

1905, ½ $ dark carmine red, unwatermarked, stamp "TSINGTAU GR. Port", superb (Image 1) (Image)

1905, 1 ½ $ black violet, watermarked, peace printing, small perforation fault otherwise superb piece of letter, expertized Jäschke L, Michel 260.- (Image 1) (Image)

1901, 50 Pf. "steep overprint", stamp "KIAUTSCHOU DP ** ", superb piece of letter (Image 1) (Image)

1922, 30 M. On 5 Fr. Blackish blue / pale brown-ochre, gap between 30 and Mark 3.9 mm in lieu of 2.8 mm", mint never hinged, superb, expertized Dr. Small, Michel 80.- (Image 1) (Image)

1923, 10 on 2 M. On 45 C., gap between 2 and Mark 3.9 in lieu of 2.7 mm, mint never hinged, superb, expertized Dr, small, Michel 65.- (Image 1) (Image)