I have a client whose parents bought GNMA and muni bonds in the early 80's that were held in an account with a company that no longer exists.  They had no idea they had these bonds until just recently when they found some original paperwork.

Does anyone know how to go about recovering this?  It's in the state of CA if that matters.

They haven't received statements since like 1984.

For what it's worth, they are earning 11%-17% on these bonds which mature in the next couple of years....not a bad return.