Page:On the economy of machinery and manufactures - Babbage - 1846.djvu/188

I believe it may be considered as a fair approximation. In the course of my inquiries I have been favoured with another list, in which many of the same articles occur; but in this last instance the prices quoted are separated by an interval of twenty years. It is extracted from the books of a highly respectable house at Birmingham; and the prices confirm the accuracy of the former table, so far as they relate to the articles which are found in that list.

Prices of 1812 and 1832.

Description.			1812.		1832.		Reduction per cent. in price of 1812.
			s.	d.	s.	d.
Anvils		cwt.	25	0	14	0	44
Awls, Liverpool blades		gross	3	6	1	0	71
Candlesticks, iron, plain			3	103/4	2	31/2	41
——————, screwed			6	41/2	3	9	41
Bed screws, 6 inch, square head	$\scriptstyle {\left.{\begin{matrix}\ \\\ \end{matrix}}\right\}\,}$	gross	7	6	4	6	40
——————, flat head		gross	8	6	4	8	45
Curry-combs, 6 barred		dozen	4	01/2	1	0	75
——————, 8 barred		dozen	5	51/2	1	5	74
——————, patent 6 barred	$\scriptstyle {\left.{\begin{matrix}\ \\\ \end{matrix}}\right\}\,}$	dozen	7	11/2	1	5	80
—————————, 8 barred		dozen	8	63/4	1	10	79
Fire-irons, iron head, No. 1.		. . .	1	41/2	0	73/4	53
—————————, No. 2.		. . .	1	6	0	81/2	53
—————————, No. 3.		. . .	1	81/4	0	91/2	53
—————————, No. 4.		. . .	1	101/2	0	101/2	53
Gun-locks, single roller		each	7	21/2	1	11	73
Locks, 11/4 brass, port. pad		. . .	16	0	2	6	85
———, 21/2 inch 3 keyed till-locks		each	2	2	0	9	65
Shoe tacks		gross	5	0	2	0	60
Spoons, tinned, iron table		gross	22	6	7	0	69
Stirrups, com. tinned, 2 bar	$\scriptstyle {\left.{\begin{matrix}\ \\\ \end{matrix}}\right\}\,}$	dozen	7	0	2	9	61
Trace-chains, iron		cwt.	46	91/2	15	0	68