A reference to a RAF Group dropping screamers:
https://books.google.com/books?id=p1...eamers&f=false
A photo of a German screamer bomb, RAF bombs were similar:
http://legendsintheirowntime.com/LiT...pic_p008_W.png
A war-time magazine. Page 4 shows a drawing of a German screamer bomb:
https://rclibrary.co.uk/files_titles...et_1943_01.pdf
The whole magazine/comic book is interesting.