Six weeks before Christmas, every year in Solothurn, there is an "Art Supermarket" where artists from Europe agree to sell their works. But they also agree to reproduce any item that is sold out, a sort of constant supply of an image. The sales run into January 2016 this year. http://www.kunstsupermarkt.ch/plugin...m_manager_id=1
Maybe if you could complete the contact form, they will get back to you?
-sorry it's only in French & German
Historical photos, http://www.kunstsupermarkt.ch/bildergalerie/