61= Likely a factory-specific batch or internal code (in some variations of this format, it may relate to month or other details, but for EE-prefix serials, the standard interpretation points to early 2000s production).
102039 — The production sequence number.
This guitar was manufactured in June 2000 (or around that period) at the Qingdao plant, China.
Modifications:
Plastic nut replaced with bone nut.
Bridge Pickup replaced with Dimarzio Tone Zone.
Neck Pickup replaced with Dimarzio Super Distortion.
Dunlop strap locks installed
Gator hardshell case included; Similar to typical Gibson case with body blanket.