Australian 6 pence dated after 1937 are one of the few modern coins that contain silver. Most moderns eliminated silver in the 1960s. The kangaroo and emu pattern make this coin uniquely Australian. The portrait changes from George VI to Elizabeth II in 1953.
Silver content of these coins is low, about 0.045 troy ounces of silver per coin. So it takes a bunch of them to accumulate significant silver value. To compute this value, add up the total troy ounces in your collection and multiply by the current value of silver, as found on web sites such as kitco.com.
The catalogs quote collector values for these coins as follows:
worn: silver value
average circulated: less than $1 US dollar approximate catalog value
well preserved: $2
fully uncirculated: $8
There are a few *good dates* in the series, as follows:
1952: catalog value $5 in average circulated condition, $35 well preserved
1953: catalog value $4 in average circulated condition, $25 well preserved
1956: catalog value $2 in average circulated condition, $5 well preserved