| Browse this collection | This entry describes an individual archive record or file. Click here to browse the full catalogue for this collection |
| Archive Reference / Library Class No. | D7009/1 |
| Title | Letters patent for an invention for improvements in core bars and barrels used in the manufacture of iron pipes |
| Date | 8 Nov 1860 |
| Description | issued to Thomas Horsley of Kirkby Hall, Pinxton, civil engineer and George Knighton of Riddings near Alfreton, foreman of fitters [at Riddings Ironworks] for the term of 14 years |
| Level | File |
| Repository | Derbyshire Record Office |
| Archive Creator | Thomas Horsley and George Knighton of Pinxton and Riddings |