May be a solid CJ-3B. Metal plate blue was an original 3B color??? There was a Sierra blue between 1963-1965.

“1964 Willys-Jeep, CJ3B, 4X4, 3spd on the floor, Hi & Low Transfer Case, F Head “Hurricane” motor, 2.2 liter, 134 cu. in. 4 cylinder. 2 owner with 57,705 miles has spent most of it’s life garaged and mostly in storage for the last 12 years. Starts and runs good. Has had a recent tune-up and brake cylinders redone. A little TLC is all she needs. Original metal flake blue paint. $6750.00″

http://medford.craigslist.org/cto/5734491079.html