I found this quern in the Museum of Liverpool. Before wind or water powered mills querns were used to grind the grain to make flour. The final results were a significant improvement but still very coarse compared to today’s rotary milled flour, in fact the large chunks of grain left have been blamed for wrecking ancient teeth.
This one was found in West Lancashire.
Visiting Liverpool Cathedral I also spotted this nice relief of corn – a reminder of the city’s enormous milling concerns of the last two centuries and it’s relationship with grain farming in the surrounding area.