[ulfberth]

the naval sabre has indeed a later grip and pommel cap, the decoration on the blade reminds me on Italian blade decoration of the 16th c however on your sabre it looks similar yet different, not sure what to think if it.
The repeating shapes on the rapier is a good sign and i have seen it before, its more a baroque type design.
Here are some pictures of a cup hilt with a colichemarde blade, they are rare and different from the small swords colichemarde blades which are between 80 and 90 cm long while these rapier blades are between 100 and 115 cm long.
This particular one was hexagonal cross section hollow ground on the first wide part and after the fuller it changed to diamond cross section hollow ground.
kind regards
Ulfberth