William and Mary ruled Great Britain from 1688 to 1694. Their likeness appears on coins minted during their reign. Back then a penny was worth something, so they were minted in silver, a far cry from today's pennies which are minted, so it seems, in cardboard.
These coins show William (Gulielmus) and Mary's portraits on the front, with a crowned 1, 2, 3, or 4 on the back. These four denomination are nominally worth the same amount in collector value, so we call out prices averaged over all the denominations and all the dates in the listing below:
worn: $35 US dollars approximate catalog value
average circulated: $180
well preserved: $350
The penny (1 pence) and 2 pence coins are worth a tad less than these amounts, and the 3 and 4 pence are worth a tad more.
Use our Important Terminology page to properly interpret the catalog values on this page.