Sewer & Stitcher to the trade refers to a mechanised method of attaching soles. Up to this time, soles could be handsewn -- a slow and costly method used only for the best Northampton made shoes or, soles could be attached with metal rivets (nails) which was the low cost method but produced a very heavy and rigid boot. The first machines for sewing soles came from the United States and it would seem that Shortland decided to invest in the "new technology" - a shrewd investment enabling Mr Shortland to provide a most valuable service to the county trade.
It appears that each individual Sanders outworker took the boots, that he had part made by hand, to Irthlingborough, to have the soles machine sewn/stitched, the cost of the service being charged to the Company account.
It is not easy to understand the charge list but it appears to be as follows: