Courtyard work: Master painters Dornhege Brothers, Münster/Westphalia. Claus Dornhege explains the technique for such work: Pebble mosaic surfaces can be laid directly or indirectly. In the indirect method, the stones, glued in reverse onto paper, are pressed into the applied mortar, or the glued stones are backed with mortar on the backing paper and then laid as slabs onto the substrate.
