You have a good gun worth restoring- it is a 20, a FWE with I assume, double triggers. The May 1901 patent date on the forearm iron indicates the Lewis design ejectors, not the earlier design ejectors from aprox 1891- with the distinctive "clamshell" shaped escutcheon. 30" barrels are not as commonly found on 20 gauge Smiths as are 28"-- Buck Hamlin is your man- he is the best gunsmith on LC Smiths (and LeFevers) and is reasonable- I concur with the other gent who suggested you get in touch with Buck.
