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

Spectrum On30 Colorado  Southern Porter steam engine in original box
Spectrum On30 Colorado Southern Porter steam engine in original box
$95.00
Time Remaining: 10d 2h 30m
Buy It Now for only: $95.00

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Spectrum On30 Colorado Southern Porter steam engine in original box