Antique cast iron barn door roller.
Weathered, but solid condition, pulley wheel turns free.
Latest patent date on the bottom is marked 1901
made by Meyer Sure grip measure is roughly 5 1/4 tall , wheel is just over 3 inches in diameter.
Some of the pictures a little moisture was added to the top of the letters to make them legible for photos
Personally, with the layers of paint down on this, throwing a clear coat would make those letters pop and would look really cool.