Remington Model 11 and production date

[5Redman8]

I have just been given my wife's grandfather's Remington Model 11 12ga.  It is in what I would call field shape.  When I got it last night, there was rust in several places, only on the outside.  All internal surfaces are shiny and clean.  After a little work, all the rust is gone but it did leave some pitting.  Looks much better but still needs some TLC.

One question is I cannot find the serial number referenced for production date.  The # is 441,XXX.  I have found a listing of production dates but I can only locate out to 425,XXX and then in 1949 they jumped to 700,000.  Please help if you can find a production year.

Also, without damaging value, is there any way to remove the pitting?  This gun has one of the variable chokes, twist style, are those factoy?

Thanks,
Kyle

[mjbgalt]

check remington's website. there is a place where you can go in and read about the history of certain guns. i am pretty sure the model 11 is included.