No, I don't know the contents, but I do have a few old Bog tools. I'll check through my old 1920's vintage tool/hardware catalogs, and see if I can find any Bog sets featured.
In my tool collecting experiences last year, I found several really old brands of sockets and drive tools from time to time, including Snap On, Ray, Hinsdale, Walden-Stevens-Worcester, Duro Chrome, and Bog. There were others, but those caught my attention and just plain LOOKED old to me. Very cool.
I'll also see which Bog brand tools I have at home, and post a photo.
Nice find!