1964 Gibson J-45 Serial Number 215778
This J-45 has features common to others produced in 1964. It has an adjustable bridge (introduced in 1956), large frets (1959), a cherry sunburst finish (1962), and mahogany back and sides with a spruce top (standard since the end of WWII). The red tint of the cherry sunburst has faded to an almost golden color, which is common on J-45s made from '64 to '66. Photo and information from Dave's Guitar Shop.