Bidspirit auction | Montblanc piston fountain pen 442

Montblanc piston fountain pen 442 - Montblanc piston fountain pen 442 with steel cap and 14 C 585 gold nib, probably 1950s, black and brown marbled celluloid, gold-plated metal applications, company logo, clip missing, L.13.8 cm, in yellow cardboard case with instructions, 2 x 15 x 4 cm