King Edward Mine Museum, at Troon, recorded its largest ever attendance at Sunday's open day.
More than 1,500 people visited the site to see the historic exhibits and static displays of vintage vehicles and engines.
There was also a feast of entertainment, including Redruth Town Band, Troon School choir, Ingleheart Singers and Ros Keltek dancers.
As in previous years, the highlight of the day for many was the running of the stamps and the mill, and the Holman winder.
KEM spokesman Tony Brooks said: "Managed by our team of 30 volunteers, this was our best open day ever."
King Edward Mine is part of the South Condurrow Mine which was abandoned about 1890.
It was re-opened in 1897 by Camborne School of Mines and became a fully operational training mine.
It was renamed King Edward in 1901 and was completely re-equipped with modern machinery reflecting what was then considered the best Cornish practice.
It was intended that the tin produced would cover most of the teaching costs.
The mine regularly produced tin up until World War 1 when operations were suspended.
By 1920 it was back in production, but this only lasted until 1921, when the neighbouring Grenville Mine stopped working, flooding both.
The surface area of the mine was retained and used for teaching mining, ore dressing and surveying.
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