This pair of 1964 Philadelphia Mint Sets are not in government packaging but are a put-together set in some kind of promotional packaging. That being said, the coins are in mint state and look quite a bit better than the photos as the plastic holders are pretty beat up.
Even so, I am still going to start the opening bid at 10% below silver melt!
Today's silver price is at $66.38 per ounce, or 48 times face value. We have $1.70 Face value of silver in these two sets.
$1.70 X 48 = $81.60 Less 10% = $73 starting bid.