An advertising header for S.J. Phillips, the retail silversmiths that loosely continue on from David's brother, Joel:

S.J. Phillips - London - 1951
Established in 1869 by David Phillips's nephew, Solomon Joel Phillips at 66, Regent Street, this upmarket firm is still in business, now located at 139, New Bond Street. Although mostly retail, this firm did enter marks with the London Assay Office.
John Culme notes in his
'Directory of Gold & Silversmiths' notes that shortly after the death of Solomon Joel Phillips in 1908, one Arthur Hunt, who had been employed at the firm for nearly twenty years, was apprehended on a charge of falsification of accounts but managed to shoot himself at the moment of arrest.
Trev.