Original Mouseketeer Ears

[Inside Outside]

I have a question about getting information about a collectible. I'm afraid I know absolutely nothing about Disney collectibles, and can't find any information about what I'm looking for on eBay or Google. Today my Mother found a pair of original Mouseketeers Ears in mint condition that her grandfather gave her. She's looking to sell them, but we have no clue as to how much they're worth. I was wondering if anyone would have even the slighest idea how much they might be worth. I know that they aren't a replica, seeing as how my Mom got them almost fifty years ago.