Found this bulb today. It is not used. There is lot of red tone in spectrum. The color code is 542. Compared to the Belgian one in the collection, it shines much better, although it is unfair to compare these 2 bulbs, because one was used for street lighting, and the Dutch one was sitting as a spare. In picture no. 3, the green light is visible at the bottom of the bulb, which indicates its excellent condition.