Many thanks to SRAA contributor, Dan Greenall who shares the following recording and notes:

Broadcaster: Radio Denmark

Date of recording: 1970

Frequency: 15.165 MHz

Reception location: Ancaster, Ontario, Canada

Receiver and antenna: Hallicrafters S-52 using a longwire antenna

Notes: Here is Radio Denmark on 15165 kHz shortwave as recorded in 1970. Their interval signal is heard followed by announcement in English, then identification in Danish. Sadly, for most North American listeners, all of their programming was also in Danish in 1970.