Athanor / Piger Henricus

Athanor / Piger Henricus

The shamanes tried to find gold (lapis philosophorum) via an Athanor, a clay, stone oven.
Lao lang suggests to use a Piger Henricus, developped about 1475, which was able to keep the temperature constantly on the same level. This suggestion aims at Anselm Kiefer f.e. who painted several Athanor pictures.