[Below: These are interesting. This set began in 1941 and were drawn by active pilot Major Hannes Trautloft (1912-1995). There are three different series of these, with 8-10 each. On the backs each postcard tells the series number and the postcard number. This pack has cards from series two and three. I'm unsure if these came as a mix of different series or someone mixed them up on accident. This says: '10 Flyer Humor
Released for publication
Watercolor Artist Cards
After original drawings by active aviators
QUALITY PICTURE POSTCARD SPECIALIST PUBLISHING HOUSE HORN, GOTHA
(SINCE 1898)
SERIES 2
Continuation of Series 1 to Series 3.']

[Below: Reverse - left flap on top.]

[Below: Reverse - right flap on top.]

[Below: Series II/#1.]

[Below: Reverse.]

[Below: Series III/#2.]

[Below: Reverse.]

[Below: Series III/#2.]

[Below: Reverse.]

[Below: Series III/#5.]

[Below: Reverse.]

[Below: Series III/#6.]

[Below: Reverse.]

[Below: Series III/#7.]

[Below: Reverse.]

[Below: Series II/#8.]

[Below: Reverse.]

[Below: Series II/#8.]

[Below: Reverse.]

[Below: Series III/#9.]

[Below: Reverse.]

[Below: Series II/#9.]

[Below: Reverse.]

[Below: Series III/#10.]

[Below: Reverse.]

[Below: ...]

[Below: Reverse.]

[Below: Close-up.]

[Below: Close-up. This is strange, I wonder what this 'LILIPUT' stamp means?]

[Below: ...]

[Below: Reverse.]

[Below: Close-up.]

[Below: ...]

[Below: Reverse.]

[Below: Close-up.]

[Below: ...]

[Below: Reverse.]

[Below: ...]

[Below: Reverse.]

[Below: ...]

[Below: Reverse.]

[Below: Close-up.]

[Below: ...]

[Below: Reverse.]

[Below: Close-up.]

[Below: ...]

[Below: Reverse.]

[Below: ...]

[Below: Reverse.]

[Below: Close-up.]

[Below: ...]

[Below: Reverse.]

[Below: ...]

[Below: Reverse.]

[Below: Close-up. This is the mascot of Munich.]

[Below: ...]

[Below: Reverse.]

[Below: ...]

[Below: Reverse.]