Manufactured by Buchner & Sohn
Manufactured by Le Franc
Manufactured by Tizian Color Co.
Manufactured by Wadsworth, Howland & Co.
Manufactured by The Standard Ultramarine Co.
Manufactured by Fezandie & Sperrle
Manufactured by Charles Roberson and Co.
Manufactured by F. Weber & Company, Inc.
Manufactured by ec Pigments
Manufactured by Yamanaka & Co.