I made this photo in August 1964 on the Elbe, I forgot to notice her name, it has 8 characters. Who has an idea?

Looks a good match for the REDSTART.

Built in 1946 by Henry Robb of Leith.
629 Gross. 797 Dwt. 10 knots.

Subsequent History:

67 KAPTA MATHIOS - 69 SPYROS G.

Disposal Data:

foundered 35.46N/20.09E 9.2.77 [Piraeus-Tripoli, bagged cement]

Her Sister was called CORNCRAKE but that's nine letters............

@Paul, thanks for your answer and it is her, because I found an old noticebook back in which I noted the name Redstart during my visit to Hamburg in 1964.

Solved after 50 years, Ben!
The wonders of the internet.