I have 24 bottles of NOS Steig Luma watercolor inks. They belonged to my dad who was a graphic artist in the days before computers changed everything. I think he was planning to use them with an air brush, but never got around to it. Great artist, my dad, but no follow-through! I learned that Arthur Steig passed away in 1988, if I remember right, and that Steig inks are no longer produced. Are these inks worth anything? Is there a market for this ink? I'm not an artist, as you probably guessed. I just want to be sure that my dad's stuff goes to other artists who will appreciate it.