Hadn't seen one of these before, check out the dash, I think the reel to reel self destructs after it plays back:
barnfinds.com
Here is a little background:

Air-Cooled Hemi V8! Tatra 603 Sedan
The Tatra 603 was a larger rear-engined luxury car that was produced by Tatra (a Czechoslovak company) from 1956 to 1975. Due to the political climate of the day, only high-ranking politicians and heads of companies usually had access to these vehicles. The first generation was built between...
Here is a little background: