as above, please post some pictures.
https://encrypted-tbn0.gstatic.com/i...ftq51J4aogWG3Y
fredrick beesley was a london gunmaker with a fairly low output.
afaik the rifles were made by BSA (& LSA) and either sold direct or sold to various gunsmakers/retailers who marked them up (+ maybe finished them to thier standards???) and on sold them.
there is a book on lee speeds approaching completion, hopefully the author (jc5on here) will stop by and add to/correct the information.