I have been left two boxed, unused, Mont Blanc 163, Pinstripe 75thAnniversary pens, with gold inlays, mother of pearl symbol, and inset diamond. One is a rollerball, one a fountain pen. They are unused, with celebration boxes and Mont Blanc booklet. Rollerball is number 0261 and the fountain pen number 1465 Without me trying to find an impartial valuer, does anyone have an idea of values? Many thanks Ian