ML4, MARCONI OSRAM, ST SHAPED, TESTED

ML4, MARCONI OSRAM, ST SHAPED, TESTED

Beautiful screeded broad ST19 bulb, black base, today we have a Marconi Osram ML4 having white inked markings and a circular MWT blue & white round decal to the obverse.   The device has been tested using our VCM163 valve tester and shows good emission.