50-350 usd
The 1100 designation for a Remington shotgun is the model number. Remington makes the 1100 model in a trap version and a field version.
$1100-1400
Depending on condition, expect $500-$800.
Not sure what they are worth but I look at one at my local gunshop today and they are asking $3,995.00.
100-1000 depending on specifics
At least $150 if is in good condition more if it is a 20G
with the L prefix to the serial number,this would indicate that your model 1100 Remington shotgun was made in 1991.
150 mint condition
The Remington Model 1100 shotgun is still in production, hence it would be worth no more than list price - and probably less, if it has been used at all.
Google "Steve's Pages", or go directly to the Remington website.
$139.95