Flip Face James Track Piece

this is what came with the tidmouth thomas flip face. they alternate sides to trigger the tabs underneath.

Sunhuntin, you are a star, many many thanks.

As it happens, a lot popped up on ebay.uk which pretty much reveals all. In this photo you can see the track pieces and their triggers which come with Thomas (circled blue), exactly as you have shown, plus the ones that come in the James at Boulder Mountain set (circled red).



The manual button which triggers the boulder is another thing again, clearly shown in the youtube video posted by Super. The curved piece must be positioned in the tunnel in this case.