l, English Patent (another formula)100.80.10.40.
Tractable Yellow Metal (old formula)55.3341.84.06
Fontainemoreau's English Patent, 18388.90.1.
Cutler's English Patent, 183316.5.3..5
Sorel's White Brass, 184010.80.10.
Parke's English Patent, 184418.104.22.1685.5
Parke's English Patent (another formula)4.522.214.171.124
Parke's English Patent (another formula)126.96.36.199.
Stirling's Gun-Metal, English Patent, 184650.25.1--8Mang.
Stirling's Patent British gold, English Patent, 1846400.93.7.6.
Aich's Metal, English Patent, Feb. 3, 186060.38.1251.5
Rosthorn's Gun-Metal, Austria, 186155.040.8342.361.77
Rosthorn's Gun-Metal (another analysis)57.630.1540.221.86
Navy Brass, Austria188.8.131.52
Parisian Clock Bells184.108.40.206
Birkholz Metal, United States Patent, Mar. 11, 186260.38.2.
An English work of 1853 cites the addition of one to two per cent of iron to brass to give strength and sonorousness; and further states that large guns, large screws, pr