From Academia.edu: Customer Records From the Port of Bristol, 1465

Copyist-illuminator. Mid-15th Century. Public domain in the US

This came to my notice from Academia.edu.

Bristol 1465: Particulars of Account of Thomas Gibbes and John Senecle, customers, 29 September to 28 November 1465

The introduction explains the data, the Excel spreadsheet contains the records as they have been translated.