Unknown Tide Mill video

Retrieved from the records - can anyone say who did this video and approximately when it was made? It must be in the 60s as in 1963 The London Illustrated News conceded:
“Now it is too late. At this stage the Mill is a stretched skin structure; if the cladding were removed the whole edifice would collapse. The wheel itself is already a ruin.”
We can glimpse the end of milling in the film. It shows broken machinery, discarded sacks and masses of dust. Once it had been a hive of activity, now it was silent and forgotten.
As if to confirm that Tide Milling was at an end most of the seven-acre, half a million-gallon Tide Mill Pond was sold off to become the busy Woodbridge Marina we know today. Now just a half-acre pond is left next to the marina.
Year by year, deprived of a purpose, and of care and maintenance, the Mill continued to deteriorate. A few local historians and enthusiasts, led by Norman Scarfe, championed its preservation, but they had few reasons to hope. Many in the town did not seem to care whether it survived or slid into the river after a severe storm - something which seemed more likely every day.
And then serendipity stepped in. Mrs Jean Gardner of Wickhambrook was a lady of some means, and she was on the Governing body of St Audrey’s Hospital at Melton. Attending a meeting there in May 1968 she fell into conversation with Norman Scarfe, who told her that the Tide Mill was due to be auctioned that very week. He suggested she might like to bid for it.