Rainer:

Go to: [uboat.net] and click on Photo #15
That torpedo ,appears to be painted green up forward and gray aft.

Go to: [www.u534.coolfreepages.com] -- R. van der Veen is standing next to a T5/11 which is painted blue.

And, a closeup photo of that same TV is shown at:

[www.u534.coolfreepages.com]
pistol%20Pi4_page2.htm shows the T5/11 warhead.

Amusing, but confusing...........

Later,

ROBERT M.