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of Hockley Abbey Works, Whitmore Street, Birmingham, 18. Telephone: Northern 2087. Telegraphic Address: "Abbey, Birmingham"
c1780 Michael Rabone carried on a business as rule maker at 8 Snow Hill, Birmingham.
1784 Company has its origins in Birmingham, as rule and tool makers. The business was continued by John Rabone and his (John's) grandson, Eric Rabone. It worked under the name of John Rabone and Sons c1784-1953, becoming a public company in 1948. 
1835 Partnership dissolved. '...the Partnership heretofore subsisting between us the undersigned, John Rabone and Richard Mason, of Birmingham, in the County of Warwick, as Barometer and Thermometer-Makers, &c. was dissolved by mutual consent on the 25th day of March 1834; all debts owing to and by the said Partnership firm will be received and paid by the said John Rabone by whom the above trades will in future be carried on...'
1845 John Rabone Junior joined the firm.
1851 Partnership change. '...the Partnership formerly subsisting between the undersigned, John Rabone, John Rabone the younger, and William Henry Rabone as Rule Manufacturers, carrying on business at Saint Paul's-square, in Birmingham, was dissolved as regards the, said William Henry Rabone, on the 24th day of June 1848. All debts due and owing by the said partnership will be received and paid by the continuing partners, by whom the trade has since the dissolution been carried on...'
1871 The company moved to Hockley Abbey in Birmingham.
1872 The company's newly patented spirit levels and rules were exhibited in Moscow, Vienna, Sydney and Melbourne.
1873 Harry Joseph Rabone, John Junior's, son joined the firm.
1898 Advert. 
1937 Listed Exhibitor - British Industries Fair. Rules, Measuring Tapes, Spirit Levels and Squares. (Stand No. B.620) 
1938 'Rabone Tools'
1948 Public company
1962 Control of the business remained in the family until this time.
1984 A new factory was opened at Summer Hill, Birmingham.
2008 Business is still undertaken at Hockley Abbey, Birmingham.