Should be S L LR O for short, long, long rifle only
The 1100 designation for a Remington shotgun is the model number. Remington makes the 1100 model in a trap version and a field version.
Classic Deluxe
It's a model designation that Remington uses, i.e., Remington 11-87.
If the letters apear on the left side of the barrel above the reciver it will help you scipher the date of manufactor.
Which ones? The barrel? That's a date code. Check Remington Society of America - manufactured date link.
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 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.
The ones on the left side of the barrel by receiver are the date of manufacture code see related links for information on the Remington Society of America.
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