Certificates and Provenance
From 1 Sept 2021 I add a nfc tag in the pen and certificate which is used for authenticity and provenance. This can be checked on the NFC certification page.
Reselling to someone else:
Provenance only works when the prevenance link is not broken. If you ever sell the pen to someone else, then please contact me. Next ask the new owner to contact me with your SKU number and I can gave the next owner a new certificate.
Older Certificates.
The certificates page related to paper certificates from before January 2020 have been removed, a request for authenticy/provenance can be requested via the the contact form. I will then contact you via email and ask you to sent an image of the certificate showing the SKU number and model.