Somehow I think Berggger knowledge from Guilleminot days went into Polywarmtone.

Agfa Record Rapid (Portriga) had superb shadow rendition, while Ilford Galerie gives amazing highlight separation, other Ilford and Kodak papers were good but Polywarmtone is still by far the best warm-tone paper it has a far longer tonal scale and handles shadows and highlights perfectly.

Hopefully the new Bergger warm-tone papers will be the closest toPolywarmtone. Mean-while Foma are working on a clone