Cast iron of the value of £1 sterling is worth, converted into
ordinary machinery, £4; in larger ornamented work, £45; in buckles and
similar kinds of fancy work, £600; in neck chains, £1,300. Bar iron of
the value of £1 sterling is worth, in the form of knives, £36; needles,
£70; penknife blades, £950; polished [Transcriber's Note: The original
text reads 'bottons'] buttons and buckles, £890; balance springs of
watches, £5,000.