Recently picked up at an estate sale. This vintage ruler is in working order and does show its age and wear, but numbers remain readable.

The Vintage "Keuffel & Ester" Red End Carpenter Plumber Folding Ruler is a rare and sought-after collectible tool from the United States. This antique original piece by Keuffel & Esser features a red end, adding a unique touch to its design. With a length of 72 inches, this folding ruler is a versatile and practical tool for carpenters, plumbers, and woodworking enthusiasts alike. Its craftsmanship and historical significance make it a valuable addition to any collection.