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Drawing instrument specialists of Paragon Works, 27 King Street West, Manchester; of 41 Gartside St., Manchester 3.
1883 Advertisement. 'A. G. THORNTON Stand No. 19.- Drawing Instruments Surveying Instruments, Colour Boxes, Drawing Boards, Squares, Pins, Rods, Tapes, Chains, and Drawing Materials of every description.— 109 Deansgate, Manchester; Manufactory, John Dalton-street'
1886 Partnership dissolved. '... the Partnership between us the undersigned, Alexander George Thornton and James Alfred Reynolds, carrying on business as Drawing Material Dealers, at 47, Colmore-row, Birmingham, in the county of Warwick, under the firm of A. G. Thornton and Co., is this day dissolved by mutual consent. All debts due to and owing by the said firm will be received and paid by the said James Alfred Reynolds, by whom the business will in future be carried on...'
1895 Advert. Drawing instruments. (of 109 Deansgate, Manchester) 
1899 Advert for drawing instruments. (of 4 St Mary's Street, Manchester) 
1905 Advert for drawing instruments. 
1913 Advert for drawing instruments. 
1917 Advert for drawing instruments. 
1919 Advert for drawing and surveying instruments etc. 
1927 Advert for drawing and surveying instruments etc. 
1940 Advert for drawing instruments. 
1945 Advert for drawing instrument specialities. (of 41 Gartside Street, Manchester)