Manufacturer: as described
Large size - 2 7/8" diameter. Metal; hole punched at top. Marked CALENDARIO AZTEGA Y PIEDRA DEL SOL (translated: CALENDAR AZTEGA And STONE Of the SUN) MEXICO. Star Design with lots of interesting symbols. Quite a bit of wear. Seems like it might be pewter, but not sure. Magnet does not stick. Quite heavy.