I often use the lith and polychrome techniques not primarily to achieve a lith effect, but to get the condition for an intensive toner reaction. For some methods of toning, the size and structure of the silver grain is important, the finer the grain the more intensive the reaction to gold, sulphur and selenium toning. Depending on the emulsion of the paper, highlights and shadows of lith and polychrome prints are distinct in their structure, so that the toner reacts in different ways in different areas.
Toner MT4 Siena (Polysulfide) this lovely smelling one
dilution 1+40 10 sec!