That is a beautiful coin, and your posted pictures have really good clarity!
The reverse appears to match up with the "Royal Arms" as appearing on more recent coins (i.e., https://en.numista.com/catalogue/pieces1389.html). The obverse does match up with other coins from reign of William & Mary, as you noted.
"56. CORONATION. 1689. NUREMBERG COUNTER.
Busts conjoined, r., of William and Mary, both draped ; he
is laureate. Leg. GVLIELMVS . ET . MARIA . REX . ET . REGINA.
Below, LGL. R. (L. G. Lauffer's counter.)
Rev. Arms of Great Britain within the Garter, crown, crest,
and supporters ; below, rose, thistle, and scroll inscribed, DIEV .
E . M . DROIT : above, W R, crowned.
1. Rev. Num. Belge, 1878, PI. vi. 19.
MB. AE. M. Hohn, AE.
This counter was struck at Nuremberg, and commemorates
the coronation of William and Mary. Two pairs of dies were
made for striking these pieces, the other having on the reverse G R,
crowned, instead of W R crowned."
Thank you Steve27 for the identification of the token. Is that listing from an auction catalog or a subject specific reference? Also I would like to list this token in the catalog and wonder what the thoughts are on where to list. Germany-Counter Tokens or Great Britain-Counter Tokens? I understand it was made in Nuremberg, but it appears from some surface research they were used extensively in Great Britain. One site indicated the most prominent token/coin found by metal detectors in GB are Nuremberg counter tokens showing very large quantities of these tokens were destined for the British market. Basically is it a German token or a British token?
Coins and tokens should be listed under the country where they were used, not made (a lot of coins are produced by public and private mints of other countries). Therefore, IMO this should be listed under *Tokens* Great Britain with the title "Counter/Jeton William and Mary."
Info comes from: "Medallic illustrations of the history of Great Britain and Ireland to the death of George II"
I agree they should be listed where used. Everything I have seen/found indicates their primary use was in Great Britain. Thanks for the help and input.