Assuming that's the serial number (you should generally XX out the last couple of numbers for privacy), you may be able to get Benelli USA to tell you when it was made. There is no published list of the numbers online.
As to what model it is, it should say on it somewhere on the frame itself. Otherwise, you need to provide a description of it--pump, auto, single barrel, over/under--the gauge and length. Franchi makes or has made a huge variety of guns in many styles. You can try joining any firearms forum with a shotgun section and posting photos, too.
Franchi falconet 12 Gauge shotgun Generally go between $600 and $800.
Yes it is.
The exact value of a Franchi Aristocrat shotgun is actually dependent upon a number of factors. Some of these factors would include the age and condition of the shotgun.
Franchi made the Wildflower shotgun
du limited edition #92du1190
My Franchi 20 ga O/U is modeled on the Falconet.
Contact Franchi Customer Service through their website.
No sn data in the public domain. You will need to contact Franchi.
100-300 USD
anywhere from1000 to2000
100-2000 USD hey
http://www.barrelexchange.com/srch_1.cfm?manuf=Franchi&ga=12+ga.&Submit=Search