I came across the following interesting snippet while doing a web search for information on Butchers Film services:
"Dr Gerald Connolly has written asking for information on the photographic company known as Ensign Ltd. He writes:†I have been researching the history of the photographic company known as ENSIGN Ltd (also known as Houghton Butchers, Fordhams Cardboard works, Butchers Film Services, which was based on the Fulbourne Road from around 1907-1954) for around the last 20 years and wonder if any members have an interest in the company, or know of any persons I could contact.†Dr Connolly says he has already exhausted the resources at the Vestry House Museum, but he can be contacted at 27 The Meadows, Sawbridgeworth, Herts. CM21 9PZ, Tel: 01279-724548."
The link to this is as follows:
Walthamstowvilage.net.
So Butchers Film Services and Ensign Cameras (remember them?) were one and the same company!