Wow, I'm not sure I've seen a complete set in the hip roof box. Very nice!
Did you find it complete or near complete? or was it pieced together?
I can remember when I separated my few 1/2" drive Long C sockets out as "collectible to me" near 4 decades ago, and it took several decades to complete the set of just sockets, The 3/4 eluded me for ages, and only afterward did I find a set in the flat box, with spares and the 3/8 set in the same buy, also in a tray/box.
Suggestion - replace the mats with sheet cork, this would be "period correct" for the ere. The big box stores carry it in rolls.