Associate - Sovereign Ratings Analytics & Research. S&P Global 3.9. London E14 5LH. The role's focus is to work closely with the Sovereign Ratings Sector Leads on analysis and research for the practice, mostly focused on EMEA but also on Global…. 30+ days ago.1762. Sovereign 1823 Marsh 7 NVF with a long, thin scratch on the bust, one of the key dates of the Sovereign series, rated R3 by Marsh, this rating fully justified, Ex-London Coins Auction A141 2/6/20131 Lot 2105, realised £1500 hammer price. £1,600.