Wanted: Olympic Games Postcards

I am looking for missing Summer and Winter Olympic Games related postcards. My biggest experience was attending 2008 Beijing Summer Olympic Games Opening Ceremony in person as well as attending various sport events including athletics at Bird's Nest Stadium and diving at Water Cube. 

? Missing postcard
* in bold - I already have collected postcard

A) SUMMER OLYMPIC GAMES:
? 1896 Athens, Greece
? 1900 Paris, France
? 1904 Saint Louis, USA
? 1908 London, UK
? 1912 Stockholm, Sweden
? 1920 Antwerp, Belgium
* 1924 Paris, France
? 1928 Amsterdam, Netherlands
? 1932 Los Angeles, USA
* 1936 Berlin, Germany
? 1948 London, UK
? 1952 Helsinki, Finland
? 1956 Melbourne, Australia
* 1960 Rome, Italy
*1964 Tokyo, Japan
? 1968 Mexico City, Mexico
* 1972 Munich, Germany
* 1976 Montreal, Canada
* 1980 Moscow, Russia
* 1984 Los Angeles, USA 
* 1988 Seoul, South Korea
* 1992 Barcelona, Spain
* 1996 Atlanta, USA 
* 2000 Sydney, Australia
* 2004 Athens, Greece
* 2008 Beijing, China
* 2012 London, UK
* 2016 Rio de Janeiro, Brazil
* 2020 Tokyo, Japan


B) WINTER OLYMPIC GAMES:
* 1924 Chamonix, France
* 1928 Saint Moritz, Switzerland
* 1932 Lake Placid, USA
* 1936 Garmisch-Partenkirchen, Germany
* 1948 Saint Moritz, Switzerland
* 1952 Oslo, Norway
* 1956 Cortina d'Ampezzo, Italy
? 1960 Squaw Valley, USA
* 1964 Innsbruck, Austria
* 1968 Grenoble, France 
? 1972 Sapporo, Japan
* 1976 Innsbruck, Austria
* 1980 Lake Place, USA
* 1984 Sarajevo, Yugoslavia
*1988 Calgary, Canada
? 1992 Albertville, France
* 1994 Lillehammer, Norway
? 1998 Nagano, Japan
* 2002 Salt Lake City, USA
* 2006 Turin, Italy
* 2010 Vancouver, Canada
* 2014 Sochi, Russia
* 2018 Pyeongchang, South Korea
* 2022 Beijing, China