Source: photograph by volunteer
This photograph appeared on the back cover of Ex Fonte no.12 1991, and was taken during an open Day in September 1990. At that time the garden was not open to the public on a daily basis; visits had to be on a Sunday, on an Open Day (spring and late summer) when teas were provided, as here, or by booking a tour at a pre-arranged time.
The fountain can be seen working. On p3 it says that visitors were ‘able to work the fountain by a coin in the slot mechanism’. That does not seem to have become a regular feature!