I found this item that is tickling my curiosity. It is 5.7 g, 29.5 mm, and less than 1 mm thick. A very thin coin. It almost sounds tin when you drop it, but maybe thin silver might make that sound. Some preliminary work makes me think Lithuania. Both the legend and the horseman in he heraldry point this way. The monogram could be CR. Could be an 88 or 98 as part of the date. Please help, this one's driving me batty.

