An early Edson

This Waterman sub-brand straight-cap came our way recently. Edson pens are rather less common than Remexes, and this one has a number of notable features. The barrel imprint reads "PATENT PENDING", and the nib imprint is unusual in its location and incorporation of the size number ("No. 3"). Most of the sub-brand nibs also have a heart-shaped vent hole, whereas this one is round.

Externally, the feed has the usual pre-Spoon Feed narrow profile. On the inside, however, it is a bit different, with an axial hole and added feed channel at the bottom.