No case, from Singapore.
Last night I read a post on another site where the site member purchased a used guitar off Ebay (I think). Seller said he would ship USPS; Buyer questioned that decision. Seller assured Buyer that he's never had a problem shipping guitars by USPS.
The guitar arrived in a gig bag; no case, no box. Inside the gig bag, guitar was wrapped in used bubble wrap; that was it. Shipping label was attached to gig bag. Miraculously, guitar appears to have arrived undamaged.