Type mystery piston filling fountain pen
Product Name M 75
Manufacturer and Year Marshal, US (maybe?) - c 1940-50s (based on an imprint on the top of the box that says "ETS 1928". We think that means the company was "established 1928")
Length 5-7/16" long
Filling System Piston filler, with a plastic plunger.
Color Gray, with gold-plated cap.
Nib Extra-Fine two-toned conical steel nib. "Diamond Hard" according to the tag under the clip.
Condition Near mint in box. We've searched extensively, but have been unable to find any information on this brand. "Diamond Hard" hangtag under the clip refers to the nib, which is definitely firm. All of the imprints are clear. There's a sticker affixed to the barrel of the pen, which says "EX FINE" and also has some characters that we are also unable to decipher. The box has some wear to it, but as far as we can tell is in good shape.