I just edge search dimes, look at fat rims to see if its a proof. The 1996 W dime is interesting, but its not likely that you'd be able to sell a circulated example for much, considering all the effort it would take (uncirculated ones sell for about $20) and the 1982 no P dime is certainly worth it if you can find one, but it would take forever to date search a box of dimes, let alone the several it would take to find one.