The Chiriqui Land Company has a long history with internal combustion locomotives.
In 1929 and 1930 it obtained five 35-ton, oil-electric. box cab locomotives from GE with Winton engines. According to information that was supplied to me by P.A. Copeland these were originally numbered 6-10 and later renumbered to 706-710.
Then in the 1937 and 1938 it acquired from American Locomotive two (one each year) 300 hp diesel locomotives that looked like a reduced version of the domestic switchers. These were numbered 12 and 14.
Brian Norden.