No, it was a regular production item made by Dorman. My father sold those in the 1960s.
There was recently one listed on Ebay for some insanely high price:
https://www.ebay.com/itm/Vintage-Do...en-Wrench-Set-of-8-FREE-SHIPPING/122952960230
and there's another one listed as well, also overpriced:
https://www.ebay.com/itm/Vintage-Dorman-Allen-Wrench-Set-With-Case/182885145846
The sold originally for about two or three dollars. In the 1970s we started stocking the vinyl-bag sets in Indestro, and then later the "key ring" sets in Hollywood Accessories and Wilmar.

yeah... somewhat... that was an old Dorman item. I remember them from when I was a little kid. always thought the little leather snap pouch thing was cool.