This set of used Kelly Hubs appears in good shape. They were manufactured at the Kelly plant in Charleston, West Virginia, probably around the late 1950s or early 1960s. A descendent of the Kelly founder who worked at the plant indicated they were also made there. I believe they were invented by D.L. Beck, who filed a patent very similar to these in 1957. Beck happens to be the same man who founded the D.L. Beck Manufacturing Company in Middleport, Ohio, which made Beck hard tops in the late 40s/early 50s, a company later bought by Hubert Kelly and rebranded Kelly Mfg. They are a 10-spline hub.
“Good Used Set of Kelly Mfg Self-Lock Hubs. Removed from 1948 Dana 25 front axle. Will fit Jeep Willys Spicer Dana Model 25 27 Front Axle with 10 spline ends. Cleaned to check for cracks and breaks. Both hubs work well. May want to disassemble and regrease”