Vintage L.S. Starrett Co. cast iron engineers’ and plumbers’ level, 15\" long, Athol, Mass. Early example: the top plate is stamped “PATENT APPLIED FOR.” Early Version of the No. 133A.
- Adjustable incline vial on a swinging arm with knurled adjusting rod and graduated scale plate, for setting pitch or slope (drain lines, ramps, etc.)
- Level vial in the top plate, plus a plumb vial
- Machined cast iron frame with V-grooved Concave base for seating on pipe and round stock
- All vials intact; bubbles move freely
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![Vintage Starrett 15\](img-large/g/SX4AAeSwKWZq2DSv/s-l1600/Vintage-Starrett-15-Cast-Iron-Engineers-Plumbers-I.jpg "Vintage Starrett 15\")
