Train Numbers

[Michael de la Pena <michaeldelapena@MailAndNews.com>]

Ok. i know that in SL18, WT28 and NT2, the S stands for south, the W stands 
for west and the N stands for north, right, but what does the other letter 
stand for? Do CL## still exist?

---TAX INVOICE---
(* indicates taxable items)

*My 2 cents $0.022
            ______
TOTAL       $0.022
TOTAL TAX   $0.002