An early version of a, 'dipless fountain well' by Esterbrook, unflatteringly and perhaps unfairly referred to commonly as, 'The Hocky Puck' when introduced in the 1940s.
In the race to build the better inkwell, this simple and efficient low center of gravity and easy to fill design quickly became the favorite of clerks, accountants and bookkeepers however and was highly valued for its reliability.
The secret was the reservoir cup containing dozens of metal pins that kept the stylus primed.
This is a particularly attractive and fully functioning example, with a clear, straight Lucite shaft and perfectly well preserved rubber gasket.
Very well suited to daily writing, be it journal entry, letter writing or keeping track of your Bitcoin and Ripple.
All parts are present here including the original, 'do not fill above this level' ring insert and a new old stock bookkeeping nib.
The writing action is comfortable and the 'solid duracrome' tip of the 1550 pen provides for a smooth and fluid writing experience without the jabbing or hang ups that can sometimes accompany older dip style fountain pens.
Overall a sleek and sturdy unit that would compliment any mid-century office desk.