Rare Vintage Knape & Vogt Closet Extender No. 1050

Rare Vintage Knape & Vogt clothes Closet fixtures. Believe this to be 1920’s or 1940’s. Hard to find much on it. I posted a picture from a catalog. I do not have the catalog only for reference only. It extends out 20” but the bar itself is only 10 1/2” long. This in was mounted under a shelf in a closet and pulled out for hanging and then slides back in. Made of extremely heavy metal and glides easily. Non smoking home