I collected LC Smiths, solely vintage 1901 - 1912, mostly 3E's, and one 4E. None had a white line pad. Most had a metal buttplate, but several were live pigeon/trap models with what appeared to be "Silvers" pad and one had a leather pad. I never saw any LC's from this period with a white line, but I did see some at some of the shows that were on later made models (after 1913).

Jim Haynes