Help: EBMM Luke mystery serial numbers

I acquired a Luke BFR in a trade about 7 years ago. I contacted Ernie Ball before I completed the trade because I had concerns about the guitar’s authenticity due to the non-standard serial number and the location of the serial number on the guitar. I sent photos to a rep at EB rep and talked to him about the guitar. He believed that the guitar was legitimate, but had no idea about the serial numbers. He speculated that it may have been an early prototype, but had no way to confirm.

I’m hoping someone might recognize this guitar or have some information about the serial numbers. Any details that could help solve the mystery would be greatly appreciated.

Thanks in advance,

Rex