I was looking at my now complete telescoping dip pen, and thought the length comparison was interesting.
Here it is, extended, next to a typical early MT pen with a slip cap. This one has the rotating (NOT "rotting") (edit after below post...) collar to secure the cap on a pin on the section (it is shown in this thread). But it is the exact same size as my slip cap pens with over/under feeds.
While the dip pen appears to be a small pen, it is actually a very standard sized pen when extended for use.
Edited by Greenie, 30 July 2016 - 01:29.
correct typo that made other funny word....