Laying the first section of the mosaic floor at the north end. Note the sequence above the main slab: a thin layer of sand, tar paper underbed with wire-mesh, metal strips bed for marble chips ... northwest 5015 ... 4 Jul 1956
Placing bed for the marble chips. Laying the first section of the mosaic floor at the north end. Note the sequence above the main slab: a thin layer of sand, tar paper underbed with wire-mesh, metal strips ... 5016 ... 4 Jul 1956
