I certainly don't understand some of your conclusions Friend; the tern "SAC" is simply the abbreviation I and others use to save time typing "Syracuse Arms Company". The "SAC" never manufactured a side-lock for Simmons or anyone else; even the SAC hammer gun was a box-lock hammer, so there is no such animal as a "Simmons- SAC sidelock"?, I know of no connections between "SF&G Co and SAC" other than Frank Hollenbeck was a superintendent for both companies. I'm probably the guy confused here; but I strongly encourage you to atone to Brother Researcher for the historical information you seek, as NO ONE is more knowledgeable as to the incestuous relationships that existed between our early American double gun makers and the leadership of same than Brother Researcher.