Very nice Essence bass! This was from the early days of the Essence bass, when they were very limited in options. In fact, there were no wood choices, you could only pick 4- or 5-string, right or left handed, and fretted or fretless.
Here's the details from the instrument file:
model number: KLB4
top: Flame Maple
accent: Walnut pinstripe
body: Maple
neck: 3-piece Maple
scale: 34" long
fingerboard: Ebony
inlays: none
pickups: MXY4
controls: "Essence" volume, pan, filter, mono output
originally made for: Thompson Music
birthday: June 4, 1991
The monogram engraved on the truss rod cover and the knobs were added by a previous owner. Cleaned up real nice!