[cvsnt] tag history

[Slothouber F (Frans) (InTraffic)]

Hello,

We regularly create tags for each bug we fix with 
   cvs tag PR-XXXX .

The archive contains several tens of tags now.
Is it possible to get a listing of when
a specific tag was created.

It seems to work for tags created with
  cvs rtag
using 
  cvs history

but I can't seem to find any commands that
can list the history of tags created with
  cvs tag

Have fun,
Frans.