Boer War German Mauser Bullet ink dip pen souvenir

A scarce original Boer War period souvenir, cleverly crafted from a 'German Mauser D.M.1896 K.' brass cartridge, nickel head fitted with nib holder inscribed 'EAGLE PEN PAT. MARC ? NEW YORK' and complete with Victorian slender svelte nib. Very good condition. Height bullet 77mm. Height pen approx 109mm.