The box isn't older than 1946. They were black to WWII, crackle tan during WWII, and red some time after 1946, despite the 1947 catalog not describing the color or finish. They were definitely red by 1951, but the logo was different.
As for the contents, it is probably a No. V52 set. That box was always a little bigger to accommodate the extra pieces (ignition wrenches and an ignition screwdriver) than the smaller No. V50 and V51 sets. The feeler gauge and the DBE wrenches are not original to that set and did not come in that box from the factory. Those and other pieces (soft-faced hammers, tweezers, mechanical fingers, punches, file, additional screwdrivers, and pliers) came in their largest midget set, the No. V55. Link to my No. V55 set in the Bonney thread
here.
Just as an FYI, we have a thread for just about every brand you can think of, and if you'd like to start contributing your tools, sets, and partial sets as well as your questions to those discussions, just look at the Index in the Sticky at the top of the forum. You will likely find guys willing and able to help you complete your sets there, too. We are a trade-happy group.