Just had enough time for a three hour search today.Nothing like the smell of hot dogs on the grill as I was searching today in the park.Anyway found a silver cross and two Indo China dimes a 1922 and 1937 which have holes drilled on each coin.A little excitement for the first 10 cent Indo China coin,which I thought it was a Seated Liberty dime.The value of each coin in a world coin book with a copyright of 1971 is $1.25 but that was 36yrs ago and each coin has a small hole drilled for a necklace.