Nine months of work and no answer, published anyway
The question
Where the stone for the 1340 tower came from. There is no quarry within twenty miles and the geology does not match any of them.
What I have ruled out
Four quarries, by petrology. The stone matches none of them and matches nothing in the county record.
What I have not tried
Comparison with monastic sources outside the county, which would need somebody with access I do not have. That is the ask.
