From a recent NE Texas Estate sale:  Vintage Letter X for Xerus baby toy . 
At least I think it's a xerus, since that's the only X squirrel I can find...  Perfect for the squirrel collector, someone with the initial X, or for any baby toy collector.
No makers mark or other identifying mark, probably an old dime store type bath toy.  Softer plastic (not hard plastic, not rubbery).  I have several other letters from the same set in my store- but not the whole alphabet.  Very good- excellent played with condition- no cracks or other damage found.  Email  for additional photos.   
From my smoke free home. 
If you need additional photos or have any questions, please let me know.  I'll be happy to try to help.