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

16 LOG BRONC O On30 Model Railroad Waterline Hull Unpainted Cast Resin Kit FR65
16 LOG BRONC O On30 Model Railroad Waterline Hull Unpainted Cast Resin Kit FR65
$29.95
Time Remaining: 3d 20h 36m
Buy It Now for only: $29.95
Model Railroad Software Tools All Scales Brand New Version 184
Model Railroad Software Tools All Scales Brand New Version 184
$27.95
Time Remaining: 6d 20h 43m
Buy It Now for only: $27.95
86 HOWE TRUSS DECK BRIDGE S On30 Model Railroad Structure Craftsman Kit HL109S
86 HOWE TRUSS DECK BRIDGE S On30 Model Railroad Structure Craftsman Kit HL109S
$174.95
Time Remaining: 13d 1h 54m
Buy It Now for only: $174.95
Narrow Gauge and Short Line Gazette Magazine lot of 13 Model Railroad 1979 1981
Narrow Gauge and Short Line Gazette Magazine lot of 13 Model Railroad 1979 1981
$27.99
Time Remaining: 19d 12h 53m
Buy It Now for only: $27.99
O On30 24 WATERLINE LOGS Model Railroad Scenery Unpainted Resin Details FR1665
O On30 24 WATERLINE LOGS Model Railroad Scenery Unpainted Resin Details FR1665
$26.95
Time Remaining: 24d 2h 26m
Buy It Now for only: $26.95
170 HOWE TRUSS DECK BRIDGE S On30 Model Railroad Structure Unpainted Kit HL110S
170 HOWE TRUSS DECK BRIDGE S On30 Model Railroad Structure Unpainted Kit HL110S
$289.95
Time Remaining: 24d 21h 8m
Buy It Now for only: $289.95

Other On30 Scale train items recently purchased through this site:

Narrow Gauge and Short Line Gazette Magazine lot of 13 Model Railroad 1979 1981
170 HOWE TRUSS DECK BRIDGE S On30 Model Railroad Structure Unpainted Kit HL110S
16 LOG BRONC O On30 Model Railroad Waterline Hull Unpainted Cast Resin Kit FR65
86 HOWE TRUSS DECK BRIDGE S On30 Model Railroad Structure Craftsman Kit HL109S
Model Railroad Software Tools All Scales Brand New Version 184
O On30 24 WATERLINE LOGS Model Railroad Scenery Unpainted Resin Details FR1665