Not sure - I used to have a token of theirs, which is how I recognised it.
There are a few on here. Maybe other members know …
So their tokens were used in the mid-20th century -
not the 19th century. They are an English company started in 1958
https://irp.cdn-website.com/d96e2807/files/uploaded/4._The__Phonographic_Equipment_Company_Ltd_Part_Three.pdf
I notice that at the end of that first page, of 9 in that PDF document,
is mentioned Sega fruit machines - who later did gaming consoles.