Compare the edge of your coin to this one-
If it matches, then you do indeed have a tilted partial collar error. I could not find any listed on Ebay and even the Heritage Auctions
archives did not have any recent hammer prices. Since it is a Bicentennial Ike(2 year type coin), it should have a little more value than a random date partial collar error- I would estimate $50-75. Also, please do not hold it by the faces as fingerprints are bad for coins.