C-H,
I congratulate you on your desire to get your data as accurate as possible. I've also looked through the various lists and been annoyed by the contradictions.
As John mentioned, the gear on the left is similar to some British types, even down to the same shade of gray.
The lower sign on the gate poses more questions. 11,000 volts is the standard local distribution level used in the U.K., which seems consistent with the adoption of 240/415 LV systems and a British colonial past.
However, the style of the sign (black block at the top, "DANGER" in a red oval) is much more American than British. The U.K. has never, to the best of my knowledge, used that style of danger sign.
