We have a Pulley with a screw top antique item.  It measures about 4 3/8" in L from the top of the screw to the bottom of the wheel x the wheel is about  3" across the center x about 1/2" in d on just the wheel.  The center support bar across the middle is about 4" x about 3/4" in d. The pulley is a mixture of black paint and rust.  The screw top is about 5/8" in l with some surface rust.  It has a nice look to it, in good condition.