Greco JB-500, Made in March 1977, Greco Jazz Bass

I am listing items that were stored at my grandmother's house.

I don't know anything about guitars, so I'm using AI to help me with the product description.
Please understand that I may not be able to answer your questions.

[Product Description]
This is a 1977 Jazz Bass JB-500 from Greco, a long-established Japanese brand.
The serial number C772872 indicates that it was manufactured in March 1977.
This is a piece from the golden age of Japan Vintage, likely made by Fujigen or Matsumoku Kogyo. It features the meticulous craftsmanship typical of Japanese instruments from that era, with a thick, mellow sound that is unique to vintage basses.

■ Specifications and Features
Fingerboard: Maple fingerboard (black block inlays, binding specification)
Headstock Logo: Iconic Greco Electric Bass logo from the mid to late 70s
Tuners: Original paddle-shaped tuners typical of the era

■ Condition
Exterior: There are dents and tarnishing on the metal parts consistent with its age, giving it a vintage character.
Please refer to the photos for scratches and other imperfections.
Neck: Currently straight and does not impede playing.
Electronics: Output confirmed. Both volume and tone controls are working.
Strings: Currently attached, but replacement is recommended. They will be delivered as is.

■ Accessories
Please refer to the photos.
The case has some graffiti on it and will be handed over as is, so please understand.
Comes with a bonus item from the era.

This is a valuable vintage instrument from approximately 50 years ago, so we are looking for buyers who understand this.