GMR - Great Model Railways
The note in the centre of the white card on the lid states:
We have left the card covering the window area of this display box in position to protect the clear acetate underneath from marks or scratches whilst in transit.
So that you can show the set off to the best advantage in your shop, please remove it with care.
The Master Cutler St Pancras to Sheffield Circa 1972 Set
St Pancras to Derby Circa 1958