Holley, Clifford Dyer · New York : J. Wiley & Sons ; London : Chapman & Hall · leaf 160
137 PROPERTIES OF WHITE LEAD. Fig. 53. — Precipitated White Lead. Magnification 500 diameters. … Fig. 54. — Subt.imed White Lead. Magnification about 500 diameters.
Pigments · White lead · Zinc
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.