Vintage Elite Mfg. Co No 16 2 1/2 ton cast screw jack appears completely functional, extends to 15 1/4". Made in Ashland Ohio with Patent date May 24, 1921. Includes (2) jack extension as seen in photos which fit over hex nut as depicted in the 17th and 18th photos. Jack extensions  marked 708 34 74 seen in the 4th and 5th photos.   Found while clearing out garage of vintage car and truck parts.

Check out all 21 photos for specifics.