I know nothing about German coins, but the Krause book lists this one at
$140 in XF
and over $400 in unc. Plenty of luster remains so I figure it's AU.
The ebay auction
has closeup pictures of it and the no-reserve start price is $99.
Do an item search on #36480268 or seller search on BARBER, someone can
get a good deal!
The auction closes on Sunday morning ;-)