For steel traffic, several VFKX wagons were recoded to VKKX in about 1990.
Eleven wagons were converted. The VKKX numbers were: 4, 10, 16, 27, 36, 40, 42, 62, 66, 69, 72.
The class was still running in 1994.
File c499m compiled by Peter J. Vincent, updated 26/11/2007