[futuresoptions]

Been made aware this evening that my sister has some gold certificates/bonds that my father invested in through Merrill Lynch in the early seventies. He passed in the late 70's and even though I was in the will these were never brought to my attention. She says now is a good time to cash them in due to the the price of gold. Anyone have a clue to what these could be or what they may be worth? I haven't seen them or I would have a better clue of what they are. I have never heard of this type of investment.