Probably the least known of the early automatic pistol designs is the Mannlicher. The design went through several stages, starting as blow-forward action, followed by a fixed barrel and finally a delayed blowback in several variations. This process began in 1896 and continued until around 1904 or 1905. Like many of its contemporaries, the Mannlicher was offered in both pistol and carbine configurations (either as a pistol with detachable stock or long-barrel carbine with a permanent stock).
We have a copy of a 1902-dated original manual for the dedicated carbine version of the 1901 pistol. This is the version with a small (6-round) detachable magazine in front of the trigger, which I have seen elsewhere referred to as the 1903 model.