Fw: The Last Churchill-Wentworth Tunnel Ventilator

[nw-mailing-list at nwhs.org]

Dear N&W members
Herewith a fasinating insite to tunnel ventilation. 
What a great addition to the model railroad tunnelmouth!

Regards 
John Pearson 
Chester  UK

Subject: The Last Churchill-Wentworth Tunnel Ventilator 


http://us.geocities.com/svrr_photos/page3.htm
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