1925 - 1926, 11 airmail documents with good franking, as well and on first flight "Basle Schaffhausen" (SLK 26.3) once with vignette, Swiss Africa flight (SLK 26.7a), first flight "Basle Mannheim" (SLK 25.8a), "ZURICH-MILAN" and so on.
1925 - 1926, 11 Luftpostbelege mit guter Frankatur, dabei u.a. Erstflug "Basel-Schaffhausen" (SLK 26.3) einmal mit Vignette, Schweizer Afrikaflug (SLK 26.7a), Erstflug "Basel-Mannheim" (SLK 25.8a), "Zürich-Mailand" etc.