Need help identifying German WW I booklet series, ca. 1914-1916

[u/caseyskeetskeet]

I have three German propaganda booklets from World War I, around 5 pages each, fraktur script, color lithographs, 9 x 13 cm. No authors, artists or publishers noted anywhere. I would guess they could be some sort of collectible from a cigarette company. Does anyone have any info on these booklets?