Recover files using tag name

[robert . mulvey]

Hello,

A folder was deleted in our repository.  I need to recover this folder
and the files in it.  The files all have  different versions, but I do
have a tag name (R4_1_3)  I can use to recover them with.  Can someone
please tell me how I would use a tag name to recover these files?  Of
course I do not want to lose the revision histories when they are
recovered.

Regards,

Bob