It is the Ceramics Black Prisma variant of the Montblanc Meisterstück, a special variant of the regular model. On the pictures presented, no counterfeit can be recognised. An official guarantee for authenticity can however only be given by a specialist retailer or Montblanc itself. To be noted is that the barrel of these models scratches relatively easily; with a suitable cleaning cloth, surface traces can however be remedied again.