Try proofhouse.com tables
BLue Book of Gun Values has cross reference table.
I would need to have the model number of your shotgun to cross reference the maker if it is possible.Please include this in your question.
Made for Sears by Savage. We carry 5 and 10rd magazines. www.countrygunsmith.net
Marlin model 70.
The Purolator cross reference chart does not recognize that Kohler model number. Go to your local Advance Auto Parts store and maybe they can cross reference it for you.
Revelation was a trade name marketed by Western Auto. If you have a model number, I may be able to cross-reference it to the manufacturer.
My cross reference show this as a Mossberg model 321 or 320 Bolt Action. I suggest you find a "2010 Standard catalogue of firearms" and look up the photos. Look under Bolt action rifles in the Mossberg section.
50-100 USD
Not specifically listed in my cross-reference, but I believe you have a bolt-action .30/30 which was made by Savage and is similar to their Model 340. These would sell in nice condition for $150-$250. www.countrygunsmith.net
Well, My cross reference says the model 34 was really a Marlin 80 which was made from 1935 to 1939. But both the Blue Book and Standard Catalog say the model 80 was a bolt action repeater, not a single shot.
Savage did here is a cross reference link http://www.gunnersden.com/index.htm.gun-cross-reference-1.html
And STP oil filter model number S2 cross references to a Purolator model L24651.