Offhand I'm not certain though several pieces from 1792 feature Louis XVI and trees or gardens.
1791 George III advertising token, Great Britain.
Details
These were produced for dozens of firms in incredible quantities. So far as I know they could be produced to this very day. I've seen pieces advertising pens from the 1940s and it is common to find 20 or so at a time sold in lots on eBay. I have a couple of reasons to believe this might be contemporary, one is the hole. This would indicate that it was worn for a time and there's hardly any point in that past about 1820. The second reason is the bust. The obverse on this piece is near identical with dozens of others produced by Kettle during the Regency period but it doesn't appear to have been struck from an aging die. I got this in a very nice lot of, frankly, crappy looking jetons all dating from the same period. There are at least three variants I haven't seen before in the lot so I was very happy to pick the group up cheaply.