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Vintage L.S. Starrett No. 13A 4-inch double square with hardened No. 4 graduation blade. Made in Athol, Massachusetts, USA.Blade slides into the square head and locks with the knurled adjustment screw. Shows normal cosmetic wear, scratches and age-related marks from use, as pictured.* Starrett No. 13A
* 4” hardened steel blade
* No. 4 / 4R graduations
* Adjustable sliding blade
* Made in USA
* Machinist / toolmaker precision measuring toolPlease review photos for exact condition. Sold as shown.