Forwarding an interesting comment left on the blog:
Hamel™ has left a new comment on the post "Infernal Machines of Blackmoor":
Jeff Easley's Infernal Machine appears also in Encyclopedia Magica Vol. 1 as Apparatus of Dreadful Construction:
"The apparatus of dreadful construction, as it has come to be known, resembles a huge, iron, fully enclosed, two-wheeled chariot lacking the front bar to which horses would be harnessed. It stands about 15 feet high, 20 feet wide, and 25feet long.
Its weight is guessed to be 15 to 30 tons. Three great metal chimneys rear from its stern, spewing sparks and flames up to 30 feet into the air."
Looks like I'm going to have to add Encyclopedia Magica vol 1 to the list of Blackmoor products...