A glass negative cannot go through a modern printer, and we would not risk the originals anyway. In 1998 the Canadian photographer Chris Langtvet set up a new laboratory at the shop and trained Moustafa Abdel Aziz in reproducing photographs the old way; in 1999 he travelled to Lausanne to bring back a complete set of inter-negatives.
Paper and ink
Today each print is made from a high-resolution scan of those inter-negatives, on archival cotton paper (Hahnemühle Photo Rag, or baryta fibre paper for deeper blacks) with pigment inks rated for a century without fading. We keep the plate's edges and dust: they are the provenance.
The stamp
On the back of every print: the Lehnert & Landrock seal, the reference number of the plate, and the date of printing. A card describing the plate travels with it.