Admiral Howe Coin

It is a class of tokens known as an "evasion". They were deliberately designed to resemble a genuine government-issued farthing, especially to an illiterate person who could not easily tell the difference between, say, the word "GLORIOVS" that appears on this token and the word "GEORGIVS" that appears on genuine farthings.

Evasions were just as illegal to use as money as outright counterfeits, though both were extremely common to find in circulation in the late 1700s and early 1800s. Often these pieces were deliberately made to look old and worn and artificially "aged" prior to sale, to make them more believable as coins. Your coin probably never had a legible date on it, and if it did, it almost certainly wasn't the actual date it was made.

The people making and selling them hoped never to be caught, but if they were, they would argue in court that all they were doing was making cheap patriotic commemorative medals and it wasn't their fault that the people buying them were spending them as money. The argument didn't usually work; many evasion-makers were found guilty of counterfeiting and either hung or transported to Botany Bay.

There are literally hundreds of different "evasions" out there, each with slightly different (but equally deceptive) designs and legends. We've seen them on the forum several times before; here's one with legend GLORIOVS III VIS, here's another with legend "GEORGE RULES".