1934 envelope addressed to Birmingham franked horizontal pair 2 1/2d with 'VALLETTA' cancellation on the front 'MY 29 34' Oval 'COMMANDING OFFICER H..M.S. ENTERPRISE' dated cachet '29 MAY 1934' H.M.S. Emerald was a Emerald class light cruiser of the British 4th Cruiser squadron in the East Indies. mailed during the returning voyage to England