Your "Fun Ship" $1 chip is off the Carnival Jubilee. It should have the "old style ship under the logo" and was issued in 1986 -- one of a few startup ships for Carnival Cruse Line -- The Fun Ships series. I haven't seen a "brown sky" like the one you show in many years. You see more of the $2.50, but the singles are extremely hard to find.
You have a nice find, my friend. Congratulations. Carnival started sailing with the Carnivale, Mardi Gras, Tropicale and the Jubilee came along soon after. Thanks for showing you finds every week -- it's a highlight of looking at your posts.