Philips Historische Producten museum Eindhoven (34/52)

Philips used to make a whole range of negative glow lamps for a variety of applications, decorative and not. One famous series was that of the "emblem lamps", which was mostly intended for religious services. From left to right we have the "crucia", the "cresent", the "zion", and the "ohm" lamps, as per Philips's nomenclature. The only missing lamp is the "arrow" type, model 13502.