The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Copenhagen. Tivoli. The Concert Hall. Kruger
Copenhagen. Tivoli. The Concert Hall. Chr. Olsens
Copenhagen. Tivoli. The Concert Hall. Dancolor
Copenhagen. Tivoli. The New Concert Hall. K. WittMoller
Copenhagen. The Concert Hall in Tivoli. Papirvare Industri
Denmark. Copenhagen. The Concert Hall in Tivoli. Rudolf Olson. 1966. Postcard
Copenhagen. The Concert Hall in Tivoli. Rudolf Olsen