/usr/lib/x86_64-linux-gnu/libvtkRenderingAnnotationPython27D-6.1.so is in libvtk6-dev 6.1.0+dfsg2-6.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libvtkRenderingAnnotationPython27D-6.1.so.6.1