Do you remember which merchant you sold it to? I've heard that essential items like masks and claws will be kept in their inventories.
Otherwise, I don't know what to say to help you...
Forty two- I'm on the xbox so no luck for me
REL- I've researched it and vendors don't carry anything you may have sold past 24 hours. I was quite interested to learn of the trick, hidden chests but that didn't pan out either.
