Serial Number on Sticker

Japanese manufacture. (Note Greco branded tuners).

Serial Number relates to Dec 1977

Model Number on sticker: EG450

Serial number printed in black

Japanese manufacture. (Note "made in Japan" tuners not Greco)

Serial Number "0" dates to 1980*

Model: EG600 Missing sticker.

No Serial Number

Korean Manufacture. (Note unbranded tuners though this alone is not enough to determine country of manufacture).

Model: EG500 No Sticker.

Greco LP Custom 80's

Note: Wildly different logo and truss rod cover but retained basic shape

Greco LP Custom Korean.

Note: Different diamond logo and bell Truss rod Cover. Also different script.

Long Tenon Design (Japanese).

Note: Tongue extending into pickup cavity. Also, braided wiring.

Dowel Tenon design (Japanese).

Note: Off Centre Tenon (Outlined in Yellow) with two dowels running alongside tenon (arrowed).

Short Tenon design (Korean)

Note: Lack of depth of tenon (outlined in yellow for clarity). Also, Plastic Coated Wiring.