The two Basso's I have both have the Basso hexagonal emblem to the fork crown, the rear brake bridge and on the seat post cluster, with either the hexagonal emblem to the lug or 'Basso' to the top end of the seat stays. The one is top end and the other I would consider to be mid range for a Basso, but still good quality. So it would appear that they liked their frames to be readily identifiable.
Does indeed, thank you.