It is an original Meisterstück from the 1950s in celluloid; in this period there were two different green tones as well as a grey variant. Loose cap rings are typical of celluloid, since the material contracts over time; a repair specialist can press the rings and refasten them. The clip with lever mechanism is additionally regarded as one of the most robust and function-secure constructions Montblanc has ever made but is no longer fitted today. Strongly discoloured examples are frequent; well-preserved, little-yellowed celluloid Meisterstücks from the 1950s are rare and correspondingly high-priced.