Hi Jean Luc,
globular pommels are fairly simple in form but are rarely found on swords and rapiers in the 16thC.
In the Low Countries (Netherlands) unless other countries globular pommels were common between 1575-1600. frequently depicted in Dutch art. on rapiers and around 1650 on smallswords
therefore your transition dussage-rapier fits much better in a Dutch collection than in a French one , Don't you agree
above dussage typeF is a nice example, herewith some more pics.
forsvaret museum Aalborg Denmark nr. FMU.001156/5021/19644