I have seen good Coronation $2 coins selling in Facebook groups for $30.
If it had the C mintmark it would be a lot more.
I would agree with Tane on the Lest We Forget coin, $2 to $3.
The standard $2 coin is nothing special. Some people are under the
impression that if the designers initials (HH) are not shown, then
the coin is valuable. This is not the case, as initials were only
on the first 2 years anyway.
View my Coins here, (NOW WITH OVER 15,000
OFEC count = 237