This is fake isn't it?
Not the correct place to ask, but since you have...
That be the duck-billed platypus of the JEM family, a proper mix and match of allsorts
Body - JEM777DY (looks a shade of yellow out)
Neck - JEM7PBK (maybe custom ordered - doubt it)
Edge trem - unknown (may be original - looks too new)
Nut and string retainer - original to neck and well used
Neck plate - unknown (polished or replaced?)
Humbucking pickups - from early JEM777 series
Single pickup - unknown (not original)
Pick guard - from early JEM777 series, NOS or from fabricator
Volume and tone knobs - unknown (solid based - not original for year)
Switch tip - white based from early JEM777(V)DY
Strap buttons - unknown (not original)
Screws - unknown (polished or replaced?)
Dust under the string retainer - very authentic!
I would say it was a Frankenstein, but you cannot see the stitches