Higgins drawing ink

13 antique bottles of Higgins drawing ink. Colors include: leaf green, turquoise, red, black magic, black, orange, brown, yellow, green, blue, red violet, violet, and russet. All need to be mixed very well. I don't know if they still work. All bottles are full to almost full. Labels are in great to good condition. Awesome for a book shelf display or a drawing office display.