Thought I'd add a few facts and figures:
In 1616, the population of the township of Sheffield was 2.207. By 1736, it was 10,121. By 1861, it was 185,172.
In the 17th century, 60% of the adult male population of Sheffield were cutlers.
In 1624, when the Company of Cutlers in Hallamshire was established, 350 members immediately enrolled, and 81 the following year.
In 1672, the Hearth Tax returns recorded 224 smithies to 494 houses in the central township of Sheffield one smithy for every 2.2 houses. A further 372 smithies were recorded in the rural parts of the parish. 1 in 4 cutlers did not have a smithy as they did not forge blades.
In the 17th century, 1,324 boys served cutlery apprenticeships of at least 10 years, and 3 boys each served 16 years. Ten year apprenticeships were being entered into as late as 1814, and the usual term was 7 years, or more commonly eight.
The archives of the Cutlers Company of Hallamshire contain the records of 28,500 apprenticeships and freedoms between 1624 and 1814.
Between 1624 and 1791, around 9000 cutlers marks were issued by the Hallamshire Cutlers Company.
In 1791-2, 1,346 freemen were admitted into the company and 482 apprentices enrolled.
In 1695, a Sheffield cutler named Lewis Nawl died leaving seven GROSS of spring knives. They were valued at 36 shillings - currently £1.70 Sterling - $2.58 US.
In 1764, a journeyman cutler could earn up to 12 shillings (86 cents) a week, compared to a skilled carpenter earning nine.