Oh, perhaps they got better over the years and if so, I’ll retract immediately. But the last actual Gibson case I saw was little more than thick cardboard. It literally flexed with ease. And if it was the original case for the guitar, it was likely that build.
If not, I stand corrected. But I’d still put something like that in a flight case if I traveled with it at all.
The pic showed a new deluxe gib hc, not the old paper thin paperboard ones.
Some of the older cases are made of cardboard. One cardboard model was made for Gibson by Geib-Schaefer and called the Geib Economo.
Gibson now buys laminated veneer (plywood) cases from TKL, Ameritage, and perhaps other manufacturers. The cases are quite durable, but professional musicians may invest in a fiberglass Carlton case or a similar traveling case.