Of the Nikolai model no known counterfeits are in circulation, which is why the customs suspicion is mostly unfounded. Recommended is to print the auction with all pictures and to go with it to customs as well as additionally to contact Montblanc itself for an authenticity check. Montblanc has confirmed that original writing instruments are never withheld; with authenticity, only the regular customs duties apply. Customs officers are sensitised to brand counterfeits, which can lead to such suspicion cases also with originals.