orig_valuation_type

Methodology used in the determination of the collateral value.

For additional details refer to: https://www.ecfr.gov/current/title-12/chapter-VI/subchapter-B/part-614/subpart-F/section-614.4265 and https://www.federalreserve.gov/boarddocs/srletters/2010/sr1016a1.pdf