Date code stamped on left side of barrel, go to Remington Society of America for diagram and chart.
The Model 1100 has been made since 1963 and is still in Remington's catalog.
Go to Remington.com
1000
it depends on the year of the Remington 1100
175286V
L939713v
Remington made the model 1100. 200-400 USD.
I am by no means an expert, but my first shotgun was a used Remington 1100 sportsman 12ga shotgun w/ fixed full choke. I bought it at a local pawn shop in good condition for $300. This was about 3 years ago. New, they run about $800 so it depends on the year and condition but $300-$400 used is about average. Hope this helps.
The serial number that you have supplied,indicates that your Remington model 1894 shotgun was made in the year 1907.There were only 41,194 shotguns of this model made from 1894-1910.
here is a link to determine the age of Remington's http://oldguns.net/sn_php/remdates.php
The letter I think