Token Australia Prison Money from South Australia 1 through 60 Marks 1900 to 1910

Fortunately for CoinQuest, there's World of Coins. It is a great numismatic (coin collector) forum with a lot of resident expertise. Malj1 posted this observation about this token:

The SAG - South Australian Government - Departmental Currency was used at the Magill Reformatory in South Australia; it is believed to have been used c1900-10. The boys were moved here in 1891 from their increasingly damp dormitories on the 'Fitzjames' a Canadian three masted ship, initially used as a quarantine hulk and later refitted as a reformatory ship for 'uncontrollable' boys who were wards of the state. Denominations known are 1 mark, 5, 10, 20, 30 and 60 marks.

So these pieces have a lot of history behind them.

Tokens do not usually command super-high prices because there are relatively few token collectors. We could find only two pieces sold at auction (fine, 13 USD, extremely fine, 150 AUD), and from this tiny sample CoinQuest hypothesizes these approximate catalog values:

worn: $10 US dollars approximate catalog value
average circulated: $45
well preserved: $180

These are obviously very approximate values.
cqLastNotify