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of French Walls, Smethwick, near Birmingham
1842 The works at French Walls were acquired by Mr. G. F. Muntz, the founder of the firm, for the purpose of manufacturing his patent yellow metal sheathing and rods, which had been produced for some ten years previous to that date at temporary works in South Wales and Birmingham - see Patent Metal Co
These works were then considerably extended.
1863 Public company was established, the shares of which were rapidly subscribed
1890 The company was reconstructed, and re-registered on 24 June. . The scope of the company was broadened so that it could address other metallic trades. Philip Albert Muntz was a director; he said he had been connected with the company since its formation, and owned one-sixth of the shares in the company 
1896 Gerard Albert Muntz became managing director
1921 The firm's products included, as well as Muntz's patent yellow metal sheathing and rods, a range of non-ferrous articles. Sir Gerard A. Muntz, Bart., a grandson of the founder of the firm, was a member of the Board of Directors.