Tough question, the Remington model 550 is a .22 rifle not a 12 gauge shotgun.
100-1000 depending on specifics
About 275 in good condition
Your question answers itself.
The 1100 designation for a Remington shotgun is the model number. Remington makes the 1100 model in a trap version and a field version.
New in the box - $500-600.
Let me know which model Remington shotgun you have. Send me your email & I will send you a scan of the manual.
No such model is listed in the Blue Book or Standard Catalog.
Take it to a gunsmith.
Ball park, mine is a Model 32 TC, and it was apprasied at $3200.00
A 1895 Remington single barrel 12 gauge shotgun is worth between $200 and $2,000 depending on its condition. The actual value will vary greatly based on the specific model and the buyers interested.
The Remington model 11 shotgun was chambered in 12,16,20 gauge.Your shotgun should be marked as to which gauge it is chambered for.If it is worn away due to time and use,have a competent gunsmith check the chamber for the correct gauge. Model 11 is also one of the few firearms (by Remington at least) the have different serial ranges for gauge. 12 gauge - approximately 10,000 - 794,990 16 gauge - approximately 1,500,000 - 1,557,000 20 gauge - approximately 1,000,000 - 1,075,000