I've had pretty good luck selling Swift cases. On an item like this, I've had better luck running the auction with no reserve and let people fight over them. I think yours had a $200 starting price. I recently sold a 2X4 Swift Widowmaker style for $240 in a no-reserve auction.
Does this one have a stamp on the bottom? Most are not marked, but he made some for a leather goods store that had an imprint on the bottom.
What I did was show a hyperlink in my auction to this: