I found a photo (number 18 out of 40, or "jp08_1740") showing an analog shop in japan displaying what looks to be labelled as "Argentone" print paper under the Forte banner!
i'm still trying to get info on this Argentone paper and if it in fact has the Forte connection my paper dealer claims. ie. that ex Forte employees are behind Argentone and are using Forte formulas to produce Forte-like papers under the Argentone name. Anyone know more about Argentone?