i was recently given an old banjo found in a loft,looks like an ebony fretboard with pearl inlays, 22 frets (a dove inlayed at the fith fret)mahogony v shaped neck with inlay along the centreline of the v,wooden inner hoop with chrome or nickel plated metal outer,open back and Barnes & Mullins London stamped into the back of neck where it meets the hoop.Is there anyone out there who can i.d this model and or date it, or can point me in the right direction for some online research.....Many thanks. KEEP ON PLUCKIN..