as long as there are no cracks in the barrel, yes. it simply means not to shoot slugs thru the barrel.
THey were made by crescent firearm company.
Yes.
try e-gunparts.com
the knickerbocker was made by crescent arms Look under Crescent Tryon firearms
"The Berkshire" by Meridan Firearms "Berkshire No. 3000" by Crescent Firearms Contrary to popular belief, not the same company.
50-100 USD
$100-$200, depending on model and condition
70-100 years
Crescent Fire Arms Co. and Crescent-Davis Arms Corp. They made the gun with only Smithsonian stamped on it in both single & double barrel and in several gauges
Can't be determined from the markings you list.
$100 to $250, depending on the exact model and its condition.
Many Remington firearms may be dated by the letter code stamped on the barrel. This combination of 2 or 3 letters is rather small, and is stamped on the barrel on the LEFT side, at the very rear of the barrel. You may need a magnifier and a bright light. Once you find the letters, go to the link at the bottom of this page to decipher the date made. Good luck!