| Attractively coloured in shades of burgundy wine red pearl this Auto Tank fountain pen has a built in pump operated ink filling system with a transparent section for viewing the ink level inside the reservoir incorporated in the barrel section.
A late1930s period model engraved the National Security over Auto Tank Patent Applied For.
The 14 carat gold warranted slightly broad medium point size nib being in very good condition.
A very unusual possibly a prototype ink filling mechanism. |