IZOT 0004С  Disk Pack, 58MB, 14"
<p>Made in Bulgaria during the 70s
The amount of stored information - 58 MB 
Maximum recording density - 88 bits / mm 
Number of working surfaces - 20 
The number of tracks on the surface - 408 
</p>
Working speed - 2400 ± 48 rpm
<a href="//commons.wikimedia.org/wiki/User:Mister_rf" title="User:Mister rf">Mister rf</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>