Had this a long time but never know what it was. It looks like low grade silver or plated silver, around 19mm in diameter, and very thin. Hopefully some of you foreign coin experts can tell me, Thanks.
It's central to northern European, 17th or early 18th century, likely one of the German or Austrian states. I'm on a dinky tablet right now but if nobody nails it down in the next little while, I'll have a crack at it during the wee hours, when I'll have reference materials, a bigger monitor, and a real keyboard and mouse. The coat of arms with the lozenge/diamond shapes is vaguely familiar but I can't quite put my finger on it just yet. Color does seem to indicate a debased silver or billon composition, which are not at all unusual for that region and era. It's not a counterfeit; of that I'm reasonably certain.
These little German coins do get around. Inscriptions look like: MAX HE DG ARCH COL and SRI PR ELE VTR B DVX Bavaria and the Electorate of Cologne, Maximilian Heinrich of Bavaria (1650-1688) Might be this one: Die Medaillen und Münzen des Gessammthauses Wittelsbach By Staatliche Münzsammlung München, Johann Peter Beierlein Published 1897 PAGE 186 Item 1299 Two Albus dated 63 (1663) This book is online.
I think @willieboyd2 pinned it down. I was thinking Cologne because of that COL in the legends, but didn't get very far when I was plinking around on my little tablet earlier. I could see the "3" of the "63" in the legend and wondered if that was part of a 2-digit date, but the "6" was too indistinct for me to make out in the picture so I wasn't sure if I was really seeing numerals there or some other kind of mark. (Thanks, WB2). So assuming the "(16)63 Cologne 2 albus" attribution is correct- and I think it is- here's the NGC/Krause listing. Note the fairly close match in the picture.
Archbishopric of Cologne. I guess it is 8 heller (4 pfennig) of Maximilian Heinrich (1650-1688). This is his portrait.