1882-1950, Selection of 154 covers and cards, showing a few earlies, most items addressed to Switzerland, airmail interest, registered items, censored mail, etc.
(Image 1) (Image 2) (Image 3) (Image 4) (Image 5) (Image 6) (Image 7) (Image 8) (Image 9) (Image 10) (Image 11) (Image 12) (Image 13) (Image 14) (Image 15) (Image 16) (Image)