When Swaine & Adeney were registered as a limited company, Edward Swaine Adeney Jr was named as the managing director. He was to remain at the helm of the firm until his retirement in 1949. It was thanks to his commitment and passion that the firm was able to survive in challenging times. He first registered the maker's mark of ESA with the London Assay Office in 1902 and thenceforth the silver and gold collars of the firm's whips and sticks were stamped with this mark.