No. 333½ marbled light green celluloid piston-filler, gold-plated "arrow" clip and trim, flat top, engraved star. 119mm. 14K gold No. 3½ circle-vent Montblanc nib, slight flex. Very good condition, irregularities to green color, imprint 80% legible, captop star a bit rubbed, some losses to gold plating, piston-knob is stuck, not tested internally.
-Wallrafen, Stefan & Jens Rösler. Collectible Stars II: Montblanc Writing Instruments from 1946 until 1979. [Cologne: 2001], pp. 86-87. Scarcity rating of 4 (on 7-point scale).