Clifford J. Schlegelmilch

• Handbook of Erdmann and Reinhold Schlegelmilch, Prussia-Germany, and Oscar Schlegelmilch, Germany, porcelain marks
• Handbook of Erdmann and Reinhold Schlegelmilch, Prussia-Germany, and Oscar Schlegemilch, Germany, porcelain marks
• Handbook of R.S. Prussia, R.S. Germany and Oscar Schlegelmilch porcelain marks
• Handbook of RS Prussia, RS Germany and Oscar Schlegelmilch