This Baldwin Locomotive Works VO-1000 (c/n 67739) was built in August 1943 for the US War Department and was lettered #7143. US Army #7143 was used at Anniston, AL before being transfered to the Defense Supply Agency as #43001. It was later sold to the Middle Fork Railroad where it worked as MF RR #12. Later it was sold to Cheyenne Sales Company Inc for use at the Rawhide Mine at Teter, WV.

The VO-1000 was donated to the WVRRM in May 2006, and finally arrived in the Belington yard on August 20, 2007.

Based upon the condition of the loco, #12 will run again.