Unique Rocking Baby Crib

I have a very unique baby crib with a strap metal style rocking mechanism, very simple. I have looked at hundreds of pictures from various sources and have seen nothing like it.

I suspect it to be early 1900's, no markings that I have seen. This is not miniature or doll furniture, has what I suspect is original mattress. I bought it at an estate sale where the previous owner was said to be a hoarder.

Anything you can tell me woill be appreciated, especially time period and possible origins.

Thank You!

Glen

Fair