Has KLM really operated "continuously" since Way Back When?
Their Winter 1921 schedule
http://www.timetableimages.com/ttimages/kl21wp1i.htm shows flights to London and Paris, but the January 9, 1922 issue of "Aviation" [American pub] says that KLM has dropped their London - Amsterdam service for the winter. They reportedly made 352 flights between AMS and LON in 1921 and carried 410 passengers. Reportedly also "18,000 tons of goods". That would be 51 tons per flight. I suspect confusion with the metric system and that it was really 51 kilograms of goods per flight.
Also, did KLM operate during WW2? If so, where?
SC