BLue book of gun values
Vickers is only used for metals (far as I can tell). As for the values you wish to find, look on Mindat.org
To find out who the owner of the firearm being used to commit a crime is.
The best place to find the value for used cars would be canadianblackbook.com. This site makes it easy to search what you are looking for and will help you look in your area as the value will be different.
You can find used tractor values online at the Iron Guides website. Once on the website, you can find Blue Book values on various types of farm equipment and tractors.
You will need to know make, model and condition. There are reference works such as the Blue Book of Gun Values, Gun Trader's Guide, and the Standard Catalog of Firearms. You may also visit a firearms auction website, such as Gunbroker, auctionarms, and gunsamerica- and look up the closed auctions for guns of the same make and model.
I would look at the blue book of gun values by S.P.Fjestad.
Blue Book of Gun Values, you can look for comparables on Gun Broker, Auction Arms, Guns America..
Car companies dont easily find the value. They first like to inspect the car and look at all the damages and the repair cost all together the find a reasonable price.
Yes. A good website to look up used tractor prices is www.fastline.com. There you can find equipmemt values for tractors, trucks, and trailers.
Not used in describing a firearm, but a term used in hunting, to denote the game being hunted.
Blue Book of Gun Values
kellybluebook.com Is the the most reliable place to find car values.