We've searched the internet and found the largest collection of On30 Scale trains for sale is on eBay. Below are the listings for 'C-16'.

Sn3 Brass Pacific Fast Mail DRGW C 16 223
Sn3 Brass Pacific Fast Mail DRGW C 16 223
$885.00
Time Remaining: 11d 49m
Buy It Now for only: $885.00

Other On30 Scale train items recently purchased through this site:

Sn3 Brass Pacific Fast Mail DRGW C 16 223