Dating gold hallmarks
Between 18 the firm traded as Mammatt, Buxton & Co MAMMATT, BUXTON & COSheffield The firm succeeded William Mammatt (18 Arundel St, 1863-1867) and was active at Arundel Plate Works, 32 Eyre St, Sheffield (1864-1857).
The partnership was dissolved in 1867 and William Mammatt traded solely at 82 Division St (1867-1881) and at Albion Works, 121 Arundel St (1882-1885).
It is marked on the rear with a large (almost 7X7cm letter M with the words ade/in/exico sort of arranged among lines of the letter M in this fashion---- Reading from the top, The letter M is on its side.
the ade is next, the word "in" is cradled in the "V" of the letter, next is the word "exico" and next the other leg of the letter M. There are two matching earrings with the same "M" signature and stones, and a LARGE bracelet made of a 95mm long 33mm wide central motif set with the same type of stone and a band made of 6X 15MM cylinders which are hinged to each other.
Other exhibition venues were the National Sculpture Society, National Academy, Pennsylvania Academy, and Rockefeller Center.
I think it looks Russian, the cameo has a reddish brown back and the face and neck are in profile in a lighter beige. In the trademark book, the entry was under "Rings and Mountings" -so that is most likely the company that made your ring. submitted by Ellen from Santa Cruz Peter Macchiarini (1909 - 2001) is considered one of the pioneers of American modernist studio jewelry.Aquatic plants occupy the lowest level, marine life, such as fish and mollusks reside on the second level, and terrestrial plants, animals and birds are situated on the top level.Measuring 22 feet across, and ranging from outer to inner height from 10 to 8 1/2 feet, the monumental gates are an appropriate introduction to the actual species within.Became Mackay Cunningham & Co 'Goldsmiths to the Queen' by 1856, now at 54 Princes Street. The firm was founded by the sons of James Maclaurin owner of James Maclaurin & Sons, Boston Works, 70 Bowden St, Sheffield (1865-1870) HERBERT MACLAURINSheffield Herbert Maclaurin (born 1865) active at Matilda Works (1894-1915) and Sylvester St, Sheffield (1916-1923). The business continues in the same family WILLIAM MAMMATT & SONSSheffield Active at Albion Plate Works, 119-121 Arundel St, (1886-1896), Portland Works, Randall St and 35-37 Townshead St, Sheffield (1897-1906).In 1873 the firm was recorded as 'Goldsmiths to the Queen, HRH Prince of Wales, watchmakers, and manufacturers and designers of Scottish jewellery'. Succeeded in 1894 to his father George Maclaurin (born 1839) working in Matilda Works since 1881 (formerly belonging to Wolstenholme & Biggin). MAINEJersey A retailer jeweller, optician, and watch and clock repairer. The firm succeeded William Mammatt, 18 Arundel St (1863-1864), 82 Division St (1861-1867) and 121 Arundel St, Sheffield (1882-1885).