#What stamps do you collect from famous paintings? Man and nature coexist in harmony The friends of mankind are all good #What are the stamps of famous paintings that you have collected?#Man and nature coexist in harmony with human friends #What are the stamps of famous paintings that you have collected?#Man and nature coexist in harmony with human friends #What are the stamps of famous paintings that you have collected?#Man and nature coexist in harmony with human friends #What are the stamps of famous paintings that you have collected?#Man and nature coexist in harmony with human friends