A new promotional picture for popular television series “Downton Abbey” was scrutinized Thursday for containing one blatant historical error.

Can you see it?

If not, pay close attention to what is placed on the right side of the fireplace. See it now?

Image source: Downton Abbey

Image source: Downton Abbey

It appears someone forgot to remove a water bottle from the set. The show is set in the 1920s. The plastic water bottle wasn’t invented until a couple decades later.

(H/T: BuzzFeed)

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