On presentation of your posters at the gallery, we will be happy to give you our oral opinion on their authenticity, free of charge.

Our rates for written expertise are as follows (rate per poster):

1- Oral authentification: free of charge

2- Issue of a certificate of authenticity (including digital photography and photo processing): CHF 200.-

3- Issue of a certificate of authenticity, expertise and valuation of your poster (including digital photography and photo processing): CHF 300.-

4- Issue of a certificate of authenticity, expertise, valuation and comprehensive market study of your poster (including digital photography and photo processing): CHF 400.-

5- Detailed expertise for litigation, insurance and courts: according to estimate.

6- Valuation of an entire collection: according to estimate.

We do not carry out photo or online appraisals.
We absolutely must have the works in hand in order to give our opinion.

We do not carry out valuations of artists' paintings, engravings or silkscreens.

Jean-Daniel Clerc

Founder and director of Galerie 1 2 3.
Collector and dealer established since 1977.
Writer, lecturer and historian on vintage posters.
Founding member and former vice-president of the International Vintage Poster Dealer Association (IVPDA).
Member of the IVPDA authentification committee.
Expert for Swiss insurance compagnies and law courts.