From 1829 to 1831, Wheal Sperries produced 3,146 tons of 5% copper ore.

East Wheal Falmouth worked two lodes 60 yds. apart, coursing N.E. and underlying S.E. in the tributary of Truro River at 750 yds . E. by N. of the chapel.
[…]
The mine [… was] included in the Falmouth Consolidated Mines group in 1905.

- Dines

In the 1940s Truro’s Auxillary Unit Patrol built an Operational Base in a disused adit of East Wheal Falmouth:

The Patrol built a structure within the adit from timber and corrugated iron. It was fitted out with bunks made from timber and wire netting.

It was decided to try to find an emergency exit for this OB and so the men investigated further back in the adit. They revealed an air vent running up to ground level about 20 feet above the adit floor level. After much hard work and digging out with shovels and a bucket, the men eventually managed to enlarge the adit and vent to allow room for them to escape up the vent by means of a ladder they made from 2 inch galvanised pipes and rungs. The vent was fitted with a wooden hatch and camouflaged at ground level with an old tree stump

The Patrol often spent nights in this OB.

In the 1970s it was in quite good condition with the iron bunks, ammunition shelving and escape ladder to a hatch in the wood above all well preserved. Although well disguised, it was then relatively easy to access. A more recent site visit has shown the site and location to have decayed and become overgrown. Today the adit has collapsed and the shaft is flooded.

- British Resistance Archive