The best way to keep track of the movements of Thailand's crown prince is to check planespotter websites, where people whose hobby it is to look for and record sightings of unusual aircraft share information. For planespotters, seeing a plane as rare as one of the prince's 737s is an extremely exciting event. Checks of planespotter websites confirm that both of Vajiralongkorn's 737s arrived in Munich yesterday. This is further confirmation that the photographs are real. Thanks to Robert Scott for alerting me to the latest information.