The Pelikan 140 was made from 1955 to 1963 in a uniform size; the total length of about 12.5 cm named in collector sources is consistent. A significantly longer example with 13.1 cm and a deviating piston mechanism or feed is therefore no "large 140" but generally a barrel from the 400 range, on which a 140 cap was subsequently placed. The concrete 400 barrel can, based on the feed, probably be dated to the 1970s. The identification of Pelikan models is overall due to frequent parts combinations confusing.