Hi Ray,
Yes, there are 2 different series put out by Casino Windsor. And it looks like you have 1 from each series. There are 4 strikes in each series.
The strikes are $20 strikes in Canadian money( but because if the money exchange rate) they are $10 in American money. And in Dennis Fins's and Christi Gregory's Non-Nevada silverstrikes guide. These are listed as $10 silverstrikes.
The value kinda hard to say at present, but I won one on ebay, like you have last April for about $30.00.
I would be interested in trading with you for the race car strike you have. If you would like to trade please email email me.
Dan