OBBB Pluma Caligrafía 14K flex MONTBLANC OBRA MAESTRA 144 G RELLENO PISTÓN
Hard to find OBBB signing flex nib late 1950s MONTBLANC Masterpiece #144G fountain pen piston filler. with original smooth and ultra flexible OBBB size 14c bicolor gold nib and the higher ebonit feed with yellow star toped cap.