It is in good condition with a ceramic funnel as per the photos. It would transform that old lamp v. It will slot into a standard 24.50 mm BR aperture in the reservoir The adjuster shaft is approx 40 mm from the centre of the burner.
BR RAILWAY LAMP SHERWOOD LYNLIGHT CERAMIC BURNER STAMP BR /LMR 75MM SHAFT
BR RAILWAY LAMP SHERWOOD LYNLIGHT CERAMIC BURNER & WICK STAMP BR 70MM SHAFT
BR RAILWAY LAMP SHERWOOD LYNLIGHT BRASS & CERAMIC BURNER & WICK 35MM SHAFT
BR RAILWAY LAMP SHERWOOD BURNER & RESERVOIR 69 MM x 140mm TALL SHAFT 20mm WIDE
BR RAILWAY LAMP SHERWOOD LYNLIGHT BRASS BURNER & WICK 80MM SHAFT
BR RAILWAY LAMP UNUSUAL LARGE SHERWOOD CERAMIC & BRASS BURNER 35MM SHAFT