I just acquired a box of gun parts that includes a L.C. Smith receiver and barrels. I don't recall ever seeing one just like it. Both side plates have L.C. Smith with 1896 stamped under. On water table is serial 53006, F grade, Mar 29, 83. Barrels have matching serial number-F and what appears to be SB on each barrel. No other writing on barrels that i can find. Any information appreciated.