I have original artwork for a book I did for Dell comics in the early 1960's and want to reprint the book. The company is defunct and they were contracted to do this comic by the people it was about. Now that I still have all artwork, what do I need, to do one of the following;
1: reproduce book for one time reprint.
2: Publish hardcover version of the original art, size for size.
I would not want to get into trouble.