1905, 1 Ø olive, tenuous violet crest stamp "colonies HOLSTENBORG", as usual perforated superb, expertized Dr. Debo, Michel (800.-) (Image)

1924, 2 Ø yellow, (Facit catalogue P 5 III), superb, expertized Dr. Debo (Image)

1924, 2 Ø yellow, (Facit catalogue P 5 III), rest of hinge, superb (Image)

1928, 5 Ø pale red brown, (Facit catalogue P 6 III), superb (Image)

1923, 15 Ø red violet, (Facit catalogue P 8 II), superb (Image)