We were asked "silver content / physical size" which is and was what a $10.00 dollar sized ($20.00 dollar redeemable value) contained as in stated my response.
No large $20s were issued by The Windsor Casino, unless a recent release or discovery.
I can say that I played for the Windsor strikes - many many times at the temporary warehouse & Riverboat sites -- believe me the machines were tight---and $1 to $3 wager per pull on the handle... Two 4pc themed sets were released in the first few years of operation.. The machines were not installed in the newer permanent site.. Bummer!
Gabe