The pen is Omas's vegetal resin, with an octagonal faceted barrel and rounded section and taper. The pen is a piston filler. It's marked Omas Signum with an LE number- #76/100. The pen is substantial. Lined up against my Arco Paragon, the nib is the same size, and the taper begins just before the end of the Paragon. It's a nice, substantial pen. The pen is a piston filler, using the taper as the piston knob.
The nib is marked Omas 585, but using an older design. The nib isn't marked for size. I think it's supposed to be a fine, maybe medium. It flexes from finish to pretty broad. It's smooth for regular use, and gives nice feedback.
The set is NM/NOS. It doesn't look like it has been inked before. I tested the piston filler and there was a little residual color coming out, but that may have been from dipping it to do the writing sample. But it looks pretty much new, and the glass base is in new condition. The set comes with box and papers, though the base isn't quite a perfect fit for the cut out in the box. Odd.
I'd like $400 shipped for this set.
First message gets it, price includes insured USPS Priority Mail. Overseas shipping available at cost. Payment by Paypal. Feel free to message with any questions.