What model is this old child’s bike?
That’s a Rollfast Skoot, probably late 60s or early 70s.  

If you were hoping it’s valuable, in its current condition it’s probably not worth very much. There’s a nearly identical but fully restored one on eBay right now. Keep an eye on that and see if it sells for asking price or not. Then you can decide if you want to put the time and money into restoring it.