The postcard shows China Airlines Boeing 747SP. The Boeing 747SP is a highly modified version of Boeing 747-100 offering 'special performance'. Known during development as the 'short body' 747SB, the shortened fuselage permitted longer range flights to be made. The 747SP was offered to customers in 1974, and the first airframe was delivered in 1976.
China Airlines, flag carrier of the Republic of China on Taiwan, used the type on its non-stop routes from Taipei to San Francisco and Los Angeles.
Boeing 747SP Wikipedia Entry