And now the plot thickens.
This site shows photos of a 1707 Prussian thaler with the EXACT
Cud pattern as mine, and NO denticles. The text indicates that the photo was taken by a Samuel Ho in 2010, so if both our examples are fakes, they no doubt came from the same source. This site also quotes the weight as 21 g, which is very close to my coin's 20.68. If my example is indeed genuine, I have a coin worth well into four figures, so I'd sorta like to determine whether or not mine is real.