Some of the pieces shown are clearly counterfeits, because the depicted models do not exist as such (fantasy products) or are only roughly modelled on original models (e.g. Copernicus). Telling are nib engraving, sharpness of the contours (e.g. between star and black border) and the nature of the rings and clip; a two-step constructed cap must show a sharp-edged contour. A nib engraving "Iridium Point Germany" on imitation Montblancs is a clear counterfeit feature, while with other manufacturers it is common. With unsharp photos, a definitive statement is not possible; in case of doubt, a purchase is to be advised against and the post is to be placed in the matching forum section.