Ahrens, Werner, the army postal service of the German Military mission i. D. Turkey 1914-1918" 1970 184 sides - hardcover edition, private cover - excellent condition, rare (Image 1) (Image)

Bartels, Reginald, railway mail and railway cancellations in the German colonies and by of the German post in China" 88 sides, numerous coloured illustration, as good as new. (Image 1) (Image)

Vogenbeck, German Southwest Africa seal of office and fieldpost card" 1996, approximate 120 sides, illustrates, valuations 1. Issue 1. January 1996, in addition to it Vogenbeck / Pauls, the eagle postmark from German Southwest Africa, 1995, stamp study with numerous illustrations and valuations in points (Ex Libris stamp) (Image 1) (Image)