6' RED End EXT WD Rule

Lufkin, 6', Red End, Extension Wood Rule, Inside Read, With Graduated Metal Slide Rule That Extends Up To 6", Slide Rule Runs Under Friction In T-Slot At Each End To Prevent Slide From Falling Out, Both Sides & Both Edges Are Marked, Graduated To 1/16Th Of An Inch, 16" Stud Center In Red.