Yep, it's a German jeton. The UK Detector Find Database website has an excellent page on
Nuremberg jetons and outlines the various older types commonly found in Britain. This one is a newer variation on the "Venus penny" type, with Minerva on the obverse rather than a shield.
The letters LSL at the bottom of the reverse are the initials of the manufacturer, Ernst Ludwig Sigmund Lauer (1783-1833), one of the Lauer family of jeton-makers.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis