CREATE TABLE table_55307 ("Year" FLOAT, "Animal" CLOB, "Artist" CLOB, "Finish" CLOB, "Mintage" FLOAT, "Issue Price" CLOB)

Which artist created coins before 2010?
SELECT "Artist" FROM table_55307 WHERE "Year" < '2010'
SELECT "Artist" FROM "table_55307" WHERE "Year" < '2010'