You can watch the whole thing from the very genesis of the turbopump powered liquid fueled rocket. The British did a very thorough documentation project on the German A4 / V2 rocket after WW2 and it's all accessible to the public.
In particular, the pyrotechnic igniter that is mentioned in the article as still in use by the Russians was copied directly from there. Here's a direct link to the spot in the video where it is assembled for use.
http://www.v2rocket.com/start/chapters/backfire.html
In particular, the pyrotechnic igniter that is mentioned in the article as still in use by the Russians was copied directly from there. Here's a direct link to the spot in the video where it is assembled for use.
https://youtu.be/V_fPdXLx48c?t=2097