Based on the principle of the Onoto Swift reservoir pen of 1884 and the improved Swift model of 1897 ink pencil. From the early months of 1939 The Onoto Company regularly published advertisements in all the National newspapers, worded such as, Territorials this new Onoto ink pencil is just the perfect thing to take with you when you go to camp.

This ink pencil from the 1939 period is in perfect condition and appears to be unused. Complete in the original presentation box with the ink filling printed paper instruction leaflet. Ink filling is by side lever method a new rubber ink sac has been fitted.