Here's more detailed pictures of my early-80's ESP.. like I said earlier, I bought it used in 1987. I do know it is definitely made before 1986 because I later spotted this bass listed for sale in a music magazine ad from January, 1986.
Headstock front:
Headstock logo, detail:
Back of headstock:
Neck plate, small ESP logo on top with serial # under the logo:
Headstock front:
Headstock logo, detail:
Back of headstock:
Neck plate, small ESP logo on top with serial # under the logo: