Kaweco's classic octagonal-shaped pocket fountain pen in unfinished brass. Only 4 1/8" long capped, 4" long uncapped, and 5 1/8" posted. Steel nibs available in EF, F, M, B, & BB. Comes with one standard international cartridge; Kaweco's squeeze converter or mini piston converter are available separately.
(Looks great with the gold-tone nib. Just ask in the order notes if you want that switched.)
The following clips are also available separately for the Kaweco Sport: