<p>This is a Martin-Baker Mk GRU-5  seat, the A-6A version with a single pull loop for the face curtain.
Note that the characteristic "scissor shackle" is the black metal at top dead center. From the other side of the the seat head box, the drogue weight and line leads up to it, covered in black protective cloth, then there's the shackle, and close to us, the drogue feeds into the seat mechanisms and also attaches to the parachute.
</p><p>There is a lot of technical stuff on the side of the head-box and below and underneath.
</p><p>The aluminum plate is marked:
</p>
<hr><p>"SERIAL No [ ... ]
DRG. No [MBEU 74.... }
iSSUE | 16..M.O.D.S..
INSP | 1540 1506 23?3 244
</p>
<pre>         | 3400 3048 1717
</pre>
<pre>1   3 / 4   S E C O N D 
</pre>
<hr><p>The black disc on the green knurled bit reads:
</p>
<hr><p>"Set To 10,000 FT MBEU-2536412 MOD 2391"
</p>
<hr><p>Red sticker on head box
</p>
<hr><p>"Martin-Baker....
Ejection Seat Capability
100 Knbots - Min. On Runway
ACSEB 22-61   16F7-11
</p>
<hr><p>White sticker:
</p>
<hr><p>EJECTION SEAT PRACTICE TEST
(Plane captain and pilot)
lines 1-13
Two isometric views of seat.
</p>
<hr><p>Redish bit on tope of headbox:
"Drogue
Inspection
and
Packing D..."
</p><p>Also a white sticker on far arm of scissors shackle and what looks like a white sticker but is actual metal bet at the top of the catapult.
</p>
DSC_0092
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/9998127@N06">Bill Abbott</a>
<p><a rel="nofollow" class="external text" href="https://www.flickr.com/photos/wbaiv/6091774526/">Grumman A-6A Simulator Pilot's Martin Baker Mk GRU-5 ejection seat</a>
</p>
<ul><li>Uploaded by <a href="//commons.wikimedia.org/wiki/User:High_Contrast" title="User:High Contrast">High Contrast</a></li></ul>