Click on individual comics for a larger version. A couple of these are by Grue. There are 5 in all and to my knowledge they were never mailed to the Baltimore Sun. Either that or the Baltimore Sun never wrote back.
Comic # 1
Comic # 2
Comic # 3
Comic # 4
Comic # 5
Somehow I am reminded of the letters written by Jack the Ripper to the CNA.
The last one is pretty funny.