$27,000 face value in $10 and $20 gold coins, each gold coin having 0.9675 ounces of gold in them ($10 coins would have had exactly half that amount of gold).

So that is about 1350 $20 gold coins or their equivalent, thus 1300 ounces of gold. At current spot prices of $1340 per ounce, about $1.75 million USD.

IF they are the $20 coins, they probably look similar to these: http://www.apmex.com/product/9119/20-liberty-gold-double-eag...