2 different recipes. Brands sell different pigment mixtures under this name, so they won't all look or mix alike. Compare the pigments below.
Who makes it
PBk9 Ivory / Bone Black + PBr8 Manganese Brown1
- Holbein Artists' Oil Color No. H351
PBk11 Mars Black + PR101 Red Iron Oxide + PY42 Yellow Iron Oxide1
- Rembrandt Artists' Oil Colour No. 416PY42 PR101 PBk11LF I Semi-opaqueSeries 115 ml tube · 40 ml tube · 60 ml tube* · 150 ml tube*About Rembrandt
Sizes are the ones each line is sold in; marks a size only some colors come in. Check the store for a particular color.