group of four massive early 20th century drop forged solid steel bridge builder angle wrenches discovered stowed away under an old chicago bridge anchorage room or vault. the "ironmaster" wrenches were fabricated by the j. w. williams co., brooklyn, ny. the largest wrench measures 34 inches in length. original chrome-plated finish worn away over time. the brushed metal finish has been treated with a clear coat protective finish or sealant. priced for the lot of four.