Here is what must have been a prototype leather case for the 500H. The condition is very used, but it will still support a radio and the Zenith name is still visible on the bottom right.
This very rare case has similarities to the common cases except for the following:
- No pocket on the back for the earphone
- All leather construction instead of split leather
- Padded velour lining inside (wish they continued this)
- Manufactured by HOMA as inscribed on the buckle