Figure 5From: A study on the painting techniques and materials of the murals in the Five Northern Provinces’ Assembly Hall, Ziyang, ChinaScanning electronic micrographs of the plaster samples. Scanning electronic micrographs of the first coarse layer (a), the second coarse layer (b), the fine layer (c) and the cross-section of sample zx1-11with a thin layer on the top of the fine coat (d).Back to article page