Wahl-Eversharp Equipouised Ringtop Date?

[djentlemetal]

Hi everyone! This is my first post and first Eversharp pen. It's a smaller ringtop variety. Jet black. 14k Signature nib that writes extremely well (love the flex). Is there a way to tell what year it was manufactured? I know it should be, what, from 1929 to 1935 or so? I'm happy to provide more photos if needed. Also of note, the ring is not round like I've seen on other pens like this - it's sort of bent so there's a point at the top (pentagonal).

[Wahlnut]

The pen dates to 1930-33.  (If it had a drill hole in the seal it would have been made in that range but not sold until 1939 - But thats another story) The gings on Equipoised [ens were indeed pointed in the middle of the hoop.  That was the hoop joint was kept hidden inside the metal ferrule.