6P1P (Russian: 6П1П); 
<p>Soviet-made miniature 9-pin beam tetrode vacuum tube;  Manufactured in former Soviet Union, 1980s;  
Half of the anode has been removed from the vacuum tube.
</p>
The outermost electrode is the remaining half of the anode, then going inward the beam forming plates, screen grid, control grid, cathode and heater;
<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>