I recently picked up a 333 1/2 for less than usual, knowing there would be issues.
The body, section, and cap all look fantastic. The nib will need a little attention, but is salvageable and incredibly flexible.
But the feed is clearly not original and undersized.
I have the equipment and ebonite rod stock to create a new one, but I don't have any idea what the upper part (underside of the nib) looks like.
All I can find is images of the underside of the feed.
If anyone has any pix of one 't would be deeply appreciated. Dimensions would be even more appreciated.