Radium HRI-TS green

Osram did not offer colored double ended colored MH lamps in their catalogues except a blue version for salt water aquariums. However that does not mean that Osram did not manufacture these lamps. By special order would manifacture these lamps at the Radium Lampworks in Wipperfürth were they housed their special MH manufacturing. Here you can see an older green lamp lit. On the picture you can see a prominent green light but in reality the green is less potent.