CREATE TABLE table_41774 ("Built" FLOAT, "Number" FLOAT, "Type" TEXT, "SLM Number" FLOAT, "Wheel arrangement" TEXT, "Location" TEXT, "Notes" TEXT)

Which type of locomotive was built in 1923?
SELECT "Type" FROM table_41774 WHERE "Built" = '1923'
SELECT "Type" FROM "table_41774" WHERE "Built" = '1923'