old Ford Model A or Model T vintage running board luggage rack

Antique Model A or Model T vintage expandable luggage rack for clamping on to your running boards. They don't seem to be marked that we can find.

This measures about 30" long over the expandable area when expanded, and 12" across that when open. There are three C clamps to hold it in place.

This has the original old black paint, now worn, with some rust. It could use oiling at the joints and clamps!