A couple of years later he went into partnership with John Mortimer and began trading from 13 New Bond Street as Storr & Mortimer. In 1826, they took an additional partner, John Samuel Hunt, who brought a welcome investment capital of £5,000 with him. The firm was increasingly successful and in 1838 they moved to new premises at 156 New Bond Street, settling in just prior to the retirement of Paul Storr at the end of December that same year. This prompted a name change to Mortimer & Hunt, which the business operated under from 1839 until 1843 when John Mortimer retired and the name changed one again, this time to Hunt & Roskell. At this time the partners were John Samuel Hunt, his son John Hunt, Robert Roskell Jr. (son of the respected pocket watch maker Robert Roskell from Liverpool) and Charles Frederick Hancock. The firm now entered a period of growth and prosperity. They were creating wonderful pieces of silverware from tea and coffee pots, salvers and candelabra through to presentation plates and cups, as well as ornate and decorative table centre pieces. Their jewellery was equally impressive with diamond tiaras that converted into brooches and hair combs or perhaps a necklace, nestled in display cases next to bracelets set with oval portrait diamonds waiting to be fitted with a clients choice of miniatures. They exhibited at the Great Exhibition held in 1851 at the Crystal Palace in London’s Hyde Park where they were noted for the splendour of their display, reputedly worth a total of £100,000. By this time they had already been granted the Royal Warrant by Queen Victoria, an honour they reflected in their maker’s mark which they surmounted with a crown. Further exhibitions followed both at home and abroad, including New York in 1853 and Paris in 1867. The visit to New York was not the first time the company had ventured State side however. In 1839, they had briefly established a branch in New York under the name Storr & Mortimer. However, for reasons unclear, it only operated for a couple of years, closing in 1841. By the 1860s they were reported to be employing 35 people at the New Bond Street shop and a further 80 - 100 at the factory on Harrison Street. In addition to their full time employees, they also worked in collaboration with a large number of additional craftspeople, as well as retailing both jewellery and silver from other workshops such as that of Carlo Giuliano and Robert Hennell. The business continued prosperously and both Robert Roskell’s son, Allan, and John Hunt’s son, John Mortimer Hunt, joined their fathers in the firm.  After the death of John Hunt in 1879, his son and the two Messrs Roskells continued in partnership until 1888 when Robert Roskell passed away leaving Allan Roskell and John Mortimer Hunt to run the business between them. The following year, in 1889, the two men decided to dissolve their partnership and sell the business. It was acquired by J.W. Benson of Ludgate Hill who kept the name and continued trading under Hunt & Roskell. The company continued trading under that name until 1897 when it was converted into a limited company and styled Hunt & Roskell Ltd. This is how it remained until trading ceased towards the end of the 1960s.