Hi yesterday I took a gamble and brought home a vintage Parker Duofold model from a local shop. It costed around $110. The pen looks and writes really good. However, i am a bit concerned about few things. First of all, I am not exactly sure which model of duofold this is. The Pen measures about 13.5cm capped and 16.5cm posted. The barrel imprint says 'Geo. S Parker Duofold Lucky Curve fountain pen USA'. It has a giant nib with an imprint 'Parker Duofold pen made in USA' It has a button filling system. I dont think the cap band belongs to the pen. My guess is, the original one fell off and this particular band was fitted in its place. Also, the clip looks a bit odd. The 'PARKER' font is not ruler straight and looks a bit different compared to some other duofold clips I saw on the internet. Also, there are no other markings on the clip. It will be greatly appreciated if someone can identify/authenticate this for me. I am attaching the images below. Thank You