New York Central

NYC 1291 and sister 1290 were the only two engines built at the Michigan Central erecting shop in St.Thomas.
They were built in Canada to avoid paying duty and lasted until the end of steam working the branch.
Oil Springs, Ont. May 21, 1956 Arthur B. Johnson

NYC 7191 along with sister 7190 were only two 0-10-0's built in Canada (MLW April 1909) for a US road.
These engines along with a third Brooks built 0-10-0 (below) worked in Windsor, Ontario the first hump yard in Canada.
It is likely two engines were all that was required for the hump at one time with the third being a relief engine thus at times one would be available to run elsewhere. Shown here at Comber the end of a short branch. March 11,1946

New York Central Lines 7499. Small lettering on tender reads: MCRR CS Div. (Michigan Central Railroad, Canada Southern Division). marking it as a Canadian engine. Circa 1930's. Old Time Trains Archives