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of the Old Jewry, London
1850 Advertisement. 'Distillers, rectifiers, and spirit-merchants. Messrs. LADD and STREATFIELD beg most respectfully to inform them, that the Business long conducted the late R. B. BATH, of the Poultry. Hydrometer and Saccharometer-maker to the Hon. Board of Inland Revenue, has been REMOVED to No. 1, OLD JEWRY, one door from the Poultry; and in the hope of being honoured with their patronage, beg to say that they have had the entire management and superintendence of that department for many years, and also have become possessed of the Standards by which all the Instruments so extensively used the Government have been adjusted, and from the gratifying Testimonials from the Executors and recommendation, are still permitted to execute the work for that Hon. Board.'
1852 'The introduction of the decimal system of weighing gold and silver at the Bank England has been for some time in contemplation, but there has always been a considerable amount of opposition and prejudice against any change being made in the present division of the pound troy into ounces, pennyweights, and grains. The Bank has now decided upon introducing the decimal system, and a set of tables has been printed to correspond with the new weights which are to be used, a copy of which we have been favoured with by Mr Miller, of the chief cashier's office in the Bank. This gentleman, we understand, has devoted a great deal of time and attention in the preparation of the new weights which are henceforth to be used; he is also the author of tables for computing the weight, in standard gold, of gold at various rates up two carats better or worse than standard. The greatest care has been exercised in the preparation of the new weights, and several improvements have been made upon those formerly used the Bank. The larger ones are constructed perfectly cylindrical form, with a neck similar to a glass phial, for the convenience of handling. The material with which they have been manufactured is the best gun-metal, the outer surface being covered with a thick coat gold by the electrotype process, order that the surface of the weights shall be affected little possible by oxidization. The weights are numbered from 1 to 500 ounces respectively; and the fractional parts are numbered decimally from .001 to .5 of an ounce. The workmanship, which is of exquisite finish, been executed by Messrs. Ladd and Streatfield of Old Jewry, the wellknown workmen and successors the late Mr Bate, the Poultry.'
1859 Partnership dissolved. '...the Partnership heretofore subsisting between us the undersigned, Edward Wilds Ladd and John Streatfield, carrying on business as Hydrometer Makers, at No 1, Old Jewry, in the city of London, under the style or firm of Ladd and Streatfield, is this day dissolved by mutual consent...'