HMV, angel label.
Record label of HMV, Angel. Gold Label (UK pressing).

Click for Micrographia Home Page. H.M.V./Angel.

Another highly collectible label from HMV/EMI.
This record set is probably the definitive recording of Moussorgsky's opera (at least in its Rimsky Korsakoff version) with Boris Christoff singing all three of the bass roles.