As one of the extremely popular versions from the Montblanc brand, the Meisterstuck pen models Solitaire Gold & Black are beautiful and rare versions of the pen, produced only in the late 2000s.
The pen version you are seeing is the Doue pen model with the cap crafted from gold-plated metal with alternating lacquer lines, creating an extremely interesting striped effect. As for the pen body, it is the famous resin that we often know from Montblanc.
As a fountain pen version, this pen model also has an 18K gold nib size F, suitable for daily writing or using to sign important contracts.