There is an airport shot titled on screen as being Tehran, Iran, however dominating the shot is a Lockheed Electra aircraft of TEAL (Tasman Empire Airways Limited), a New Zealand airline and forerunner to Air NZ. That airline never flew further west from NZ than Australia and would never have tried flying thousands of miles to the Middle East using such a relatively short range turboprop aircraft.
When Napoleon Solo is meeting Dr Kharmusi for the first time, Dr Kharmusi is seen lighting the top candle of a large candelabra. However, when he blows out the taper, he also blows out two of the other candles at the same time.