CHATTERBOX, Germany
CHATTERBOX was a monthly auction magazine where more than 10.000 records were sold. The name was later changed into OLDIE-MARKT. The last issue was printed in September 2017. It is now only online.
Thank you to Jürgen Wasser for this information.
Below: #15, July 1981, 1 page
ALBANIA (1) 
In ARABIC (3) -3 countries 
BULGARIA (2) 
In CATALAN (5) -Spain
In CHINESE (12) -2 countries
CROATIA (4) 
CZECH REPUBLIC (11)
DENMARK (12) 
In DUTCH (75) -2 countries
In ENGLISH (881) -24 countries
FINLAND (16)
In FRENCH (134) -5 countries
In GALICIAN (1) -Spain 
In GERMAN (144) -4 countries
GREECE (19)
HUNGARY (2)
ICELAND (9)
IRAN (1)
ISRAEL (9)
In ITALIAN (88) -2 countries
JAPAN (66)
LITHUANIA (1)
NORWAY (45)
POLAND (15)
In PORTUGUESE (52) -3 countries
ROMANIA (1)
In RUSSIAN (5) -2 countries
In SERBIAN (5) -2 countries
SLOVAKIA (1)
In SPANISH (192) -14 countries
SWEDEN (28)
THAILAND (3)
TURKEY (19)