As I mentioned in my intro post my main collection is historical writing implements. I've developed a sub-collection of military-related items.
Here's a Esterbrook's 407 Dip-less ink well and matching pen made in special Army Brown for the Air Force U.S. Army. Any desk jockey would have loved to have had this on their desk. It holds a ton of ink, and will write much longer on a dip than the older dip pens, while being less fragile and more reliable than a fountain pen.
I picked up the ink well first, and then fortune smiled on me and ran across the pen with the exact right imprint just a week later.