Northover Projector from Military Training Pamphlet No 42 Tank Hunting and Destruction
<p>Key:
</p><p>1:  Base<br>
2:  Pivot<br>
3:  Spades<br>
4:  Leg sockets<br>
5:  Breech ring<br>
6:  Breech locking lever<br>
7:  Breech block handle<br>
8:  Firing hammer<br>
9:  Barrel clip<br>
10: Barrel<br>
11: Trigger bar<br>
12: Operating handle<br>
13: Legs<br></p>
14: Primer
HM Government
<cite class="book" style="font-style:normal" id="Reference-HM_Government-1940">HM Government (1940)      <i> Military Training Pamphlet No 42: Tank Hunting and Destruction</i>, War Office  <small></small></cite>