The Meisterstück writing instruments consist of so-called precious resin, that is, a plastic (similar to plexiglass), not of real natural resin. An exception is the Mozart series, which due to the small wall thickness is made of lacquered metal. Originals typically show a plastic body with metal tip, while counterfeits often consist entirely of lacquered metal. A small chipping behind which yellowish-shimmering material appears can be attributable to the metal tip or simply to ingressed dirt and is no unambiguous authenticity feature. Based on the length and the detail photos, the model number (e.g. 116) can be narrowed down.