Looking for Photos and Details of the WGr 21 rocket

[pstrany]

Hi;

I'm looking for detail photos of the WGr 21 rocket, as would be installed on a Bf 109 or Fw 190 aircraft. I have the usual photos of the rockets in or being installed in tubes, but I am looking for shots that would show stencilling, and also a clear view of the rear of the rocket, showing the arrangement of blast tube(s).

Also, I have read in various sources that the launch tubes were (and were not) droppable after the rockets were fired. Were they indeed droppable, and by what mechanism, and also would they indeed have been dropped, or was it more of a "only if you absolutely have to"?

Thanks!

Paul