There should be a chain of custody from the owner to the salvager to the scrap yard.
From the orlandosentinel.com
McConaughey plays treasure salvager Finn to Hudson's over-it-ex-wife Tess.
From the denverpost.com
A salvager rescues the captain of a freighter whose mystery unfolds at a London court of inquiry.
From the post-gazette.com
With some things, though, even Kugler the great salvager can't find a buyer no matter how low he goes.
From the latimes.com
A salvager by nature and hobby, Mueller bought the building in 1982, nearly 100 years after it was built.
From the jsonline.com
The salvager plucks his life savings of $9,300 from a cache and becomes Tom McGraw, a retired fisherman.
From the time.com
For an undersea salvager, recovery was a different matter.
From the time.com
In New River, Cooley sustained himself as a salvager and farmer, cultivating and milling arrowroot.
From the en.wikipedia.org
One of the most famous is Mel Fisher, a tenacious salvager who realized his dream of finding riches beneath the waves.
From the voanews.com
More examples
Someone who salvages
[BSG] Set of programs for reconstructing directory and file system integrity after a crash. Until NSS, the Salvager was a separate tape booted after a crash; built of Multics supervisor parts and running entirely in ring 0, it scanned and repaired the file hierarchy instead of coming up to serve ...