Measuring Tool Appraisal

Spring Divider Calipers

The item is a pair of vintage spring divider calipers, crafted from what appears to be steel or a similar metal alloy, exhibiting a natural, aged patina with a dull, silvery-grey finish. The construction consists of two pointed legs joined at the top by a pivot point and an adjustable screw mechanism. At the very top, encircling the pivot, is a sturdy ring, likely for hanging or storage. The main body of the calipers features two solid, tapering legs, each terminating in a sharp point, characteristic of dividers used for scribing circles, arcs, or transferring measurements. A key distinguishing feature is the adjustable screw mechanism located approximately one-third of the way down from the pivot. This mechanism comprises a threaded rod passing through the legs, with a knurled nut for fine adjustment of the distance between the points. The knurling on the nut appears to be in good condition, suggesting functionality. The legs themselves show some wear consistent with age and use, including minor surface scratches and possibly some discoloration from oxidation, contributing to its vintage aesthetic. The overall design is utilitarian and robust, indicating it was built for precision and durability in tasks such as woodworking, metalworking, or drafting. There are no obvious signs of significant damage such as bends or breaks, suggesting it remains in functional condition. Its design suggests a period from the late 19th to mid-20th century, a common style for such precision tools.