Provenance could include, but not be limited to, anything from a verifiable source of past ownership to documentation proving the substance of the piece. It may also just be a gut feeling for example where an old lady has had something in the family for as long as she can remember. Remember this though, never take anyone's word for what you are looking at. It may be that the seller is simply trying to turn a quick profit and hasn't dug too deep into an items value in either direction.
If you are looking to make some extra cash by scrapping your car, there are different factors that get evaluated in determining how much money you will receive back. The proprietor may set his own rates, which usually depends on the scrap market at that time. This can range anywhere from $50 per ton and up. However, they will carefully check any added weight stored in your car. For instance, any garbage or non-metal items left in the bed of a truck are removed before weighing. It is a good idea to thoroughly check your car and remove personal items. Check your trunk to make sure you haven't left behind any valuable items.
The home that sold for $301,000 in January was a 3/2/2 with 2500 square feet and a pool. The sold price per square foot was $120. The house that sold in July for $292,000 was a 3/2/2 with 2100 square feet and a pool. The sold price per square foot was $139.00. That represents about a 14% increase in value.
You may decide that YOUR house is worth more than other properties in the same area because you may have a beautifully extended kitchen, a superb garden, a pool, etc. In this case do your research and when you market the house make sure the photographs show exactly why you are asking for a premium price. You may have to wait longer in a static or declining market however if the property is good and worth the money then someone will pay the premium eventually, just be prepared to wait your time and accept the fact that buyers will try to negotiate the price down.
These days it is an easy alternative to call up the scrap price for junk cars removal company to tow your vehicle away by paying you cash on the spot. Generally people think they cannot receive good value for their used car, however the fact is sometimes they may get decent cash for car that they might not have imagined in the first place.
Back to the original example. If one person gets 4 years of living from $50,000, and a different person gets 2 years of living from $100,000, then everything else being equal, the person who has $50,000 is twice as rich as the person who has $100,000! He has twice as much value from his money!
Sell your car for parts on your own. car scrap value that just need parts. If you can stomach what comes with selling your junk car for part, then that is the best way to go. You will make more money then any salvage yard, salvager, or scrap yard would pay you.