Filming the chain pit in the chain testing facility in Chatham Dockyard. In the foreground, with his back to the photographer, is a smith wearing green overalls and an orange knitted woollen hat. A south Asian smith is sitting on a chair with his back to the wall. The film crew of five men are pointing the camera, microphone and light into the end of the testing pit. A clock on the wall is reading 10.45 and a notice on the back panel of the test pit reads "No unauthorised person to use this machine".