Kåge
This is likely a pseudonym for "Karl Gustaf Kindberg", more commonly known as K.G. Kindberg, one of the co-founders of the magazine. "Kåge" being the pronunciation of "K.G".
This is likely a pseudonym for "Karl Gustaf Kindberg", more commonly known as K.G. Kindberg, one of the co-founders of the magazine. "Kåge" being the pronunciation of "K.G".