The guitar was listed and sold as new, but arrived with a broken Gibson factory seal, visible signs of handling (fingerprints on the tuning machines), several scratches on the finish, and some residue on one of the frets.
Sonically, the guitar sounded amazing, which made the situation even more disappointing given the condition it arrived in.
Thomann support was polite, but was unable to clarify whether the instrument had been previously returned or opened before shipping.
I hope this was a one-time issue, as my previous experiences with Thomann have been very positive.