Jeff, I don't know what the circuit context is here, but if carbon comp types were originally used, then the exact value isn't that critical. If they have drifted badly (typical after many years), and there are two in series, then you can trim it back to normal with slightly different values of CC - like make one of them lower nominal value so they add up about right, presuming they've drifted upward (typical).
As Tom mentioned dislike for CC resistors, I feel the same mostly, but there are some spots where they are the best choice.
Ed
