That quartering machine is so impressive! I can just see it as an exhibit in one of the world's hallowed science museums. You know, with a legend such as,
"Early calculating machine by Babbidge, 1889"
or maybe, "Model used by Kepler to formulate the laws of planetary motion, 1576"
Maybe this will someday be in the National Rail Museum in York, England. "Quartering machine, Lamontagne et al, 2013"