Fred Adolph had a variety of overunders in the teens, and had an unusual patented design for one, but he was never able to get it manufactured. Most of his guns were sourced from Europe.  Emil Flues made some overunders and I assume they were made in the 20s but I am not positive of that.   
Mr. Hallquist:
 You've piqued my interest with the Adolph patented design.  I've read of a Fred Adolph lumpless/lugless design(not patented??) with side bearing surfaces and I guess something close would be that of Robert Schrader without the lumps.  It appears that the idea was transferred or ran parallel with the Russian inventors, Nikolai I. Korovyakov & V.P. Ochnev, of the TOZ-34:  
http://www.tulatoz.ru/en/toz34.htmlThe Fred Adolph design had a top lifter lever similar to that of the Powell lifter action that I think pushed a locking rod into the tubeset.
  Did Fred Adolph work a stint at Ithaca before he took the train to his jumping off spot?  Info has surfaced that Flues was involved in some bolt guns??
Kind Regards,
Raimey
rse