Double Reverse (Ravenna) method


To be completed soon

The Double Reverse ('Ravenna') Method.


OSB (oriented strand board, sterling board) 

osb board

Lime putty, (non hydraulic, air drying)

Tracing paper 

Fine permanent pen and fine water soluble ink pen

Fine medical gauze sheets

Rabbit skin glue (a type of water soluble glue) and a double bolder pan to melt it.