I just bought my first Esterbrook at the Triangle Pen Show this past Friday, and my lever is a tad loose. As in if I hold my pen flat, the lever falls a few millimeters, and even while the nib is facing directly down it is still open just a bit. This is my first vintage pen, and my first lever filled, so I have no idea what to do or how to take it apart or anything. Its a 1938/39 Esterbrook (I don't know the model.) Thanks in advance!