What do you think would be the most valuable coin with the current queen on it? I am not taking in to account bullion value, so no 1 tonne gold coins! Strictly talking numi here.
Just a guess but I'm thinking a toss up between a Proof 1957 penny or a $1 mule Nothing else comes to mind ATM
Also talking world wide, or Commonwealth wide I guess. Would Australia have the most valuable Lizzy coins?
If you includes error coins like SilverSuffer talked about $1 mule 2000, we have plenty could be worth pretty hight: 20 cent 1981 "scalloped", 20 cent 2001 error bi-metal, or 1977 20 cent pattern with British Twenty Pence (Downies sale 314, lot 1512, sold for $11,500) --- all info from Greg McDonald guide book. Some coins like 1 cent and 5 cent has two obverse dies sold at Noble. I saw few years ago someone had sold "20 cent with doubled ring" - its 20 cent mule I think. I didn't the auction, another buyer bidded >4k . Never seen any 1992 $1 MORs...