If it's 16mm with sound, it sounds commercial to me (made for schools, businesses, etc.). I'm sure there are some rare older models but most don't command a very good resale value. Without a picture(s), I'm assuming it dates probably during the '50's or '60's. Although Kodak is a great name, the vast majority of these were not trashed. Like typewriters, most found their way into attics or basements and not the trash heap. Most were used by adults and cared for when used and remain in excellent condition. Since there are collectors of old 16mm films, I'm sure it carries a value if in working condition.
