"Your gun will have the raised sighting plane high rib and no signature line on the left barrel, only the right barrel."
Yes and Yes.

Are the production numbers you have listed for that time frame just 20 gauge guns, or is that a total of all gauges?

Thanks very much for the info. I believe the gun has been completely refinished, so I probably won't spring for the research letter on a "shooter."
Thanks again,
CHAZ