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  HO scale Tunnel Portals, Bridges, Walls   |  N scale Tunnel Portal, Bridges, Walls

O and S scale Tunnel Portals and Walls

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Republic Locomotive Kits




Big News in a small scale!

Monroe Models has acquired

Republic Locomotive Works

We will be adding this expansive line of

N scale and Nn3 gauge products to our line. 

In stock kits can be found here:

Republic Locomotive Works Kits



Nn3 Handbook


Now available for a limited time 

Only Direct from Monroe Models

For modeling Narrow Gauge in N scale.


This book is the one and only source for Nn3 modeling.  It features articles on Motive Power, Rolling Stock, Trackwork, Standards of Nn3, Layouts & Modules, Electronics & DCC, Operations, International Narrow Gauge, plus handy reference charts.  140 pages

FREE bonus item! 

Nn3 Stainless Steel Track Gauge


The Book and Track Gauge for just $12.95

plus $4.95 shipping

a combined $35 value!

Check out our EBAY listing of


Republic Locomotive products and more...






Use our online store to view and order products.

 Download the below PDF forms to use as a quick references to all of our  products.

HO scale Structures and Details

N scale Structures and Details

Weathering Powders and Washes


 HO scale Tunnel Portals, Bridges, Walls   |  N scale Tunnel Portal, Bridges, Walls

O and S scale Tunnel Portals and Walls


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All Monroe Models products are for adults only and not intended for anyone under the age of 14. 

Our products are lead free.


 Manufactured in the USA and shipped around the world!

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AIM, HO scale Tunnel Portals, Bridges, Walls   |  AIM, N scale Tunnel Portal, Bridges, Walls

AIM, O and S scale Tunnel Portals and Walls

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Last modified: 02/16/23

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