I made a careless mistake when removing a set of La Bella flats from and bass and tossing them into my case without looking. Now the La Bella strings are mixed up with the set of Rotosound flats and I can't tell which are which.
They both have red silk but one set
only has silk at the nut end while the other set has silk at both ends - at the nut end
and at the bridge end.
Are the strings with the silk at the bridge end La Bella or Rotosound ?