Garden of Live Flowers LGB with Promotional Wallet

How cool is this?  I don't know what exactly this is, I can only assume that it was some sort of in-store promotion, but this is the Alice Finds the Garden of Live Flowers Little Golden Book with a Mouseketeers Alice in Wonderland wallet attached to the front cover.  The wallet is in some sort of plastic sleeve - which is barely there - which is in and of itself unusual.

The LGB only has an A printing, and the Mouseketeers did not come into existence until 1954 with the Mickey Mouse Club, so there must have been a TON of these books printed and some store was using them as a promo to sell more wallets, or vice versa.  Regardless, what a neat find!