Independent label: Dolphin Discs Records were made by Radnor Recordings Company, of Iver, Buckinghamshire, a company which offered tape-to-record facilities and presumably custom recording facilities as well. There is no date on the label of the only Dolphin Discs single listed so far, 'The Virgin Mary' by the Orpington Junior Singers; nor does its catalogue number (CD-2952) fit into any series as yet - it was used by Radnor for their various recordings.  It does, however, have an 'early '70s' look to it, The smooth ring towards the edge of the label and the rather rough appearance of the rest suggest an Orlake pressing. Thanks to Robert Lyons For The Info.

70s Orpington Junior Singers Virgin Mary  DOLPHIN DISCS CD 2952