This is the original preliminary art created for a book with title unknown - possible related to stories of Mohican Indians (from photo of indigenous tribes, this is the tribal dress) Whatever the title,  if you can help identify it, that would be great!  And even without attribution this is a fine color study, handpainted in acrylic on gessoed illustration board,  7.25" x 5".  It is unsigned, and DKS Jr would be pleased to provide a letter attesting authenticity if desired.