Boeing 747 - Economy seats in 1970, it seems to me that over time, there have been changes, and not for the better, and here, I repeat myself, but at that time,
BOEING 747-400 NORTHWEST AIRLINES SEATING CHART | Boeing 747 400, Northwest airlines, Boeing 747
Boeing 747-400 | Lufthansa
24hrs in Lufthansa 747 FIRST CLASS (South Africa to USA) - YouTube