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ID = 12147
Brand: Osram GmbH KG; Berlin
Tube type:  Glow Indicator (Neon) 
Identical to GIR310/5Z

Base Swan-Bajonet, small =B9=9.5 mm (Codex=Swanet 10 mm)
Filament No heater
Information source Taschenbuch zum Röhren-Codex 1948/49   

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