John Milmo mentions the Bosworth Records in his intro to https://www.kellydatabase.org/PDF/CTPX.pdf and says that many were originally recorded by Decca. He continues, "The EMI Special Recordings Department series began in July 1950 with CTP16617. Issue numbers were allocated in BC and BCV (10”) and BX (12”) series." Later, though, he lists a bunch of Latin American releases with BA-prefix, including 4 by Los Andrinis and 8 by Alfredo Antonini and Viva América Orchestra.
The music publisher Bosworth usually released its "library music" on its own Bosworth label. Those records were made by EMI's Special Recordings Department.
I wonder if this particular release is from as late as 1965 when the various EMI branches were again reorganized as The Gramophone Co. Ltd. The patent language on the label, though, looks more like that of a #C7 His Master's Voice label (used 1946-1948).
Kelly says this track and "18 th de Septembre" were issued as BA 254 (not sure on which label).
The Kelly database lists this as a CTPX record, but X would indicate a 12-inch record, and this seems to be 10 inch. I also don't see an X between the C(T)P prefix and the number on the label. The sticker label was damaged where the T should be, but not after the P.
Not a very informative label - a test or promo pressing blank with a paper label attached. Information comes from Kelly database on matrix number search. Recording date 20th May 1954 matches, so title taken from there, where the name R. Romero is given as composer. Unplayed as yet, as in a pretty filthy state..