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 25398 ON30 Porter Steam Locomotive Painted Unlettered
SPECTRUM 25398 ON30 Porter Steam Locomotive Painted Unlettered
$99.95
Time Remaining: 8d 22h 55m
Buy It Now for only: $99.95

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SPECTRUM 25398 ON30 Porter Steam Locomotive Painted Unlettered