Doesn't mean anything other then it's a model 1100.
The serial won't help you unless you call Remington but It's date stamped on the barrel. Check the Remington Society of America's manufactured date link for details.
The 1100 designation for a Remington shotgun is the model number. Remington makes the 1100 model in a trap version and a field version.
Have never seen that on any of my 1100's- I am a Freemason, and would have noticed that. By Freemason emblem, I am assuming you mean the square and compass marking- it could have been added after purchase by a Mason, or as a gift to a Mason. There are some unusual factory markings on Remington guns (including an anchor!) but have not seen square and compass.
Classic Deluxe
Nothing...just a decoration.
It's a model designation that Remington uses, i.e., Remington 11-87.
The B means B grade wood,and the dl means deluxe grade.Thus you have a B deluxe grade model of the remington model 700.
Remington Model 24 serial no#s were from 00001 to 130,425.Don't know what you mean by long spur and rifle model RW408700?
I have no idea what you mean. Every Remington shotgun ever made was designated as a shotgun, and had a model name or number. If you clarify your question, maybe someone can help.
Depending on what you mean by recondition, either the Remington factory can do it, or a gunsmith who works on shotguns may offer the service. A combination of things like tuning springs, adjusting action and refinishing will probably cost $100 to $250 in 2012.
I think you mean a Sportmaster 512, Remington didn't make a Model 52. In MINT, like new condition around $300.-
Diagram and table on related link
Do you mean the Remington model 700 bolt action rifle?Marlin never made a model 700 to the best of my knowledge.