Sagarmatha National Park

I received 4 postcards of 4 different expeditions to the Everest. After a lot of research I'm confident to say that these two are from Nepal and the other two are from China. So I'm almost sure that these two show some place within Sagarmatha National Park 

1935 Mount Everest  Expedition

Including the highest point on the Earth’s Surface, Mount Sagarmatha (Everest; 8,848 m) and an elevation range of 6,000 m Sagarmatha National Park (SNP) covers an area of 124,400 hectares in the Solu-Khumbu district of Nepal. An exceptional area with dramatic mountains, glaciers, deep valleys and seven peaks other than Mount Sagarmatha over 7,000 m the park is home to several rare species such as the snow leopard and the red panda. A well-known destination for mountain tourism SNP was gazetted in 1976 and with over 2,500 Sherpa people living within the park has combined nature and culture since its inception.

1953 Mount Everest Expedition

Encompassing the infinitely majestic snow capped peaks of the Great Himalayan Range, the chain of mountains including the world’s highest Mt. Sagarmatha (Everest) and extensive Sherpa settlements that embody the openness of SNP to the rest of the world. The carefully preserved natural heritage and the dramatic beauty of the high, geologically young mountains and glaciers were recognized by UNESCO with the inscription of the park as a world heritage site in 1979. The property hosts over 20 villages with over 6000 Sherpas who have inhabited the region for the last four centuries. Continuing their traditional practice of cultural and religion including the restriction of animal hunting and slaughtering, and reverence of all living beings. These practices combined with indigenous natural resource management practices, have been major contributing factors to the successful conservation of the SNP. - in: http://whc.unesco.org/en/list/120/