BRITISH PRIME MINISTERS: Small selection of signed Free Front envelope panels by various British Prime Ministers comprising the Duke of Wellington (addressed to Major Sinclair at Regent's Street and signed with his initial), Earl Grey (addressed to the Archbishop of Dublin), Viscount Palmerston, George Canning (addressed to Cecil Hall at Christ Church, Oxford; some show through of ink from the verso), and Viscount Melbourne (addressed to Viscount Palmerston at the Foreign Office). A few minor tears and faults, G to generally VG, 5