CREATE TABLE table_16897 ("Name" CLOB, "Number" CLOB, "Builder" CLOB, "Date built" CLOB, "Wheel arrangement" CLOB, "Driving wheels" CLOB, "Cylinders" CLOB, "Boiler pressure" CLOB, "Notes" CLOB)

On what date did Hudswell Clarke build the locomotive with 0-6-0 ST wheel arrangements?
SELECT "Date built" FROM table_16897 WHERE "Wheel arrangement" = '0-6-0 ST' AND "Builder" = 'Hudswell Clarke'
SELECT "Date built" FROM "table_16897" WHERE "Builder" = 'Hudswell Clarke' AND "Wheel arrangement" = '0-6-0 ST'