Original poster here! I am fascinated by the responses and I have not yet read through all of them yet. Thanks to all you dedicated enthusiasts. I have the gun at a trusted gunsmith right now to check it out so I can not currently take more pictures. But I can answer some of the questions that were asked:
1) buttplate is in rough shape but it appears to be round "LAC" type
2) I have not removed sideplates to see about adjustable sears.
3) There appears to be no additional marking under the barrels other than the serial number and an "x", which I think is frame size?
4) cocking indicator is the type that protrudes out the sideplate when cocked.
5) gun does not say either Syracuse or Ithaca anywhere.
6) forearm does not have any metal parts on it like others with similar serial numbers.
I will get a chance to read through the rest of the responses and hopefully answer the rest of the questions. Again, thanks for all your insights on this topic!
