Listed for sale are (3) vintage Brown & Sharpe  6" steel rules. These are No. 312-604 stainless tempered with a double hook attachment; No. 599-314-604 chrome satin tempered; and, No. 8 thin tempered rule. These machinist tools are in pre-owned/used condition with usage/blackened marks and names/initials (see pictures) and will be shipped USPS Ground Advantage.