Coal mine model a the Science Museum in Kensington, London.

M/S J. Boswell lifting dummy coal-miner into position. C/U Adjusting his face-mask and oxygen meter. C/U Adjusting his face and nose-mask. M/Ss Men putting down wooden blocks on floor. C/U Painting scenery on wall. M/S George Stanley sawing end off log. C/U George Stanley sawing end off log, picks up log and walks out of frame. M/S Walks away with log, puts it through hole in wall.

M/S Man crawling in hole, log already inside, picks up log and puts under strut holding ceiling up, puts wedge underneath. C/U Hammering wedge in. L/S Len Beaman setting dummy in kneeling position with hands on pile of bricks. C/U Len Beaman setting dummy in kneeling position with hands on pile of bricks, walks to another dummy and puts on its tin helmet.