Public Domain: Published Prior to 1923
BH Photo #464928
King is the only recorded manufacturer I've found, but they only built in Iola from 1871-1872, after which they moved to Topeka, and after failing there they abandoned their Kansas/non-Ohio operations entirely.
While your assumption of King is logical, reasonable and probable; the rigging and arch seem too delicate to be a King to me.
Although it has certain CBW qualities, I doubt its them; was anyone else in the area making bridges? Were early Kings that light weight?