Vintage Parker Parkette Junior Pearled Green Marble Fountain Pen Lever Load - READ
It's approximately 4 3/4" which I believe makes it a Junior model but I'm not sure. It has a WriteFine NIB which makes that a replacement NIB.
The bottom ring on the cap is missing and the top ring is loose. The lever was a little stiff when I first tried lifting it so I'm thinking the bladder might have issues but I'm not an expert so use your own judgement
Not a collector so check pics to judge for yourself
From estate sale