The Montblanc 97 is not extremely rare but a high-quality collector's piece from the 1960s. Realistic market prices, depending on condition and engraving, are about 160 to 250 euros; dealer offers of 1,600 euros or more are utopian. A normal Montblanc large-capacity refill often does not fit, since the tip opening is smaller and an additional sleeve sits in the cap; suitable refills are e.g. Schmidt 1011 refills. The 585 hallmark stamped multiple times confirms the solid-gold housing.