Takumar-A 28mm F2.8 prime lens.
Structure at the Nelson Pit Visitor Centre in Poynton, Cheshire, UK.
The disc with indentations is a 'map' showing the position of mine shafts and mine workings in Poynton and Higher Poynton, relative to the Nelson Pit Visitor Centre. The last collieries here were closed in 1935.