RARE SONY WM-504 SKELETON WALKMAN AA BATTERY CADDY

This comes from a WM-504 which I owned a long time ago. Long story short I had an original boxed unit which was complete. After moving a few times various parts got misplaced including the original box which got crushed.  I've long since sold the instruction manuals etc.   This is a pretty hard accessory to come by.

Thanks for looking.