Selig Polyscope was a US film company, see
Selig
Polyscope in our US History Section, that opened their London offices
at 12 Gerrard Street in Westminster.
Records indicate that they were only open
from 1912 until 1915 and then closed their offices. This corresponds to
when Selig consolidated their Chicago and Edendale studios into their Los
Angeles Zoo.
Here's what we have on Selig
Polyscope in our archive