Blast from the past.... in a box

The company that I am working for is about to have their 60th anniversary, while going threw a treasure trove of old products still with they're original packaging, we came upon this box.

I don't know when this was printed or when it was sold, but 10 cents for a chocolate bar.. omg unheard of in todays vocabulary.

I thought it was neat to find this amongst all of our products over the years, how did this box sneak into our fishing gear?

I'd like to find out the date of this box, just to fulfil a curiosity.