THE YEAR WAS
"Curse of the Red Stone Thieves"
Written by Vernon Henkel(writer and artist)
#22 - Heading through the Kyber Pass on a train with a British diplomat, Don Q is helping guard the man as he conveys the "Red Stone" to the Rajah of Juanpur (also spelt Jaunpur). The train is attacked and Don Q is entrusted with the gem to get where it needs to go. Things get a tad strange on the way.
Here are the pages I have of it.