I recently got this case and I don't know which model corresponds to. Does anyone knows it?

thanks

That's for Sony WM-F501 AM FM Cassette player

or WM190 Cassette Player, actually I need one

So I'll keep it. I've been searching for both a 501 and a F501 for a while...

Thanks TheLion,

I found a case last week for a Sony WM-fx251, or fx453.  I thought about buying it for a buck to enhance the 251. Then I noticed the unit it didn't work anyway...  I still may get it.  These WM's have the controls on the front face in a funky semi-circle, btw.

The wm-f501 doesn't come in a hard case like the wm-501? 

This gives me a great idea