(12 May 2016, 6:37 am)OW1762 wrote Here is a picture of them
I never even noticed those, if they were there on Tuesday. (Too busy trying to not get rattled by the undercarriage rattle, which I suspect was coming from a wheel arch)
The ones upstairs on the Max X12s are similarly arranged, but you can't help but notice those, since the ceilings are so low!