13017 - "Montblanc" No. 234 ½ M - Vintage piston-fill fountain pen with a 14C/585 gold nib, circa 1936–1940

"Montblanc" No. 234 ½ M - Vintage piston-fill fountain pen with a 14C/585 gold nib, circa 1936–1940 Montblanc Model 234 ½ M fountain pen, Germany, circa 1936–1940. Black or dark translucent barrel with “Montblanc” lettering on the cap, gold-plated clip and decorative rings, and the Montblanc star on the cap top. Marked “234 ½ M” and “D.R.P. 652405” on the barrel. The D.R.P. number refers to the German Reich patent for the telescopic piston filling system used by Montblanc and is not a serial number. The gold nib is marked “MONTBLANC,” “14C,” and “585,” indicating 14-karat gold. The “M” in the model designation stands for medium nib width. Shows signs of age and wear, particularly noticeable wear on the clip and gold-plated metal parts. The barrel has some surface marks and discoloration; the Montblanc star is discolored due to age. Functionality and leak-tightness have not been tested.