I found this advert in the 'Pontypridd Observer' dated 17th May 1952:
“ROSSER’S RADIO (Prop. A. R. HILLIER & CO. LTD.), 4 TAFF STREET, PONTYPRIDD. HERE AT LAST - ACE MINIGRAM (with BSR 8-Record Autochanger) Radiogram. AVAILABLE FOR IMMEDIATE DELIVERY.”
... there is a photo of a 1950's Ace Minigram with BSR record deck at this link:
https://www.retrotogo.com/2016/05/ebay-watch-1950s-ace-minigram-with-bsr-record-deck.html
... and this advert in the 24th May 1952 edition:
“A. R. HILLIER & CO. LTD. (LATE ROSSER'S RADIO), 4 TAFF STREET, PONTYPRIDD (Next door New Inn). WE OFFER YOU ONE OF THE FINEST SELECTIONS OF RADIO, RADIOGRAMS, PORTABLES & TELEVISION.”
“ROSSER’S RADIO (Prop. A. R. HILLIER & CO. LTD.), 4 TAFF STREET, PONTYPRIDD. HERE AT LAST - ACE MINIGRAM (with BSR 8-Record Autochanger) Radiogram. AVAILABLE FOR IMMEDIATE DELIVERY.”
... there is a photo of a 1950's Ace Minigram with BSR record deck at this link:
https://www.retrotogo.com/2016/05/ebay-watch-1950s-ace-minigram-with-bsr-record-deck.html
... and this advert in the 24th May 1952 edition:
“A. R. HILLIER & CO. LTD. (LATE ROSSER'S RADIO), 4 TAFF STREET, PONTYPRIDD (Next door New Inn). WE OFFER YOU ONE OF THE FINEST SELECTIONS OF RADIO, RADIOGRAMS, PORTABLES & TELEVISION.”