Probably pretty hard to find one if you wanted to. They were manufactured in Spain. The Blue Book only lists 3 models sold in the US, all side-by-side double barrel shotguns. Their prices are about the same as other utility doubles.
No
Best to ask a gunsmith for assistance.
Davidson's is a firearms dealer. You can learn more about Davidson's from the DavdisonsInc website. Once on the page, scroll to the bottom and click on Company Information.
50-250 USD or so
Check your yellow pages
The exact value of a Davidson firearms 16 gauge double barrel model 63 is actually dependent upon a number of factors. Some of these factors would be the condition and age of the firearm.
Possible places to look include the internet, the library, company website.
You will have to have it checked over by a good gunsmith to be sure.
Davidson Firearms of Greensboro NC imported shotguns in about the mid 1960s. ABOUT $150-$200, depending on exact model and condition. Nice boxlock guns from Eibar Spain.
$100-$200
A Harley Davidson Chopper motorcycle can be purchased from a specialist motorbike store, on the rare occasions they have one. Otherwise, one would have to resort to buying one online, at sites such as Pisonheads, eBay, and the official Harley Davidson website.
No published sn data.