Help record player like PYE black box TYPE S/Play CHANGEABLE HEAD

Looking to find a record player it was like a PYE BLACK BOX but was diffrent it played single records, and main thing was that it had interchangerble heads one for 45s the other was for 78s I was given this when I was about 13 in 1969 from an old family friend my parents new but long gone now, the reason it went was at the time the needel for 45s broke and as it was in this head I took it to our local record shop and they could not help me replace the stylies it was not made the heads was blue and red, record player was mono it must of been a 1950s one but just cant rember the name of it the sound was amassing and very loud as it was vales i think can any one help me find out what was have been looking on well known sight but never seen anything like it as it being single record play the pye black box was a stacking one it may have been a Deacker or dont know whould love to find one in worlking order just the model name would be a Help please help TONY