I worked at the French roulette and the last Baccarat table in Belgium in the 1990's.

BUT I worked in Belgium and not in England so I have no idea what those jetons were used for.
Different country, different habbits. We used old jetons and chips as trainingschips.
Holland casino used the trainingsjetons and roulettes as trainingchips.
Golden Ten used everything they could find and I have seen massive stocks of "rare" chips already.

In the Netherlands it was very common to use chips and not jetons while working on an opta 24.

So, and I will stop here, if you ever have tried to throw a chip in a rateau you will know what I'm talking about.

As long as you can't find someone that worked with those jetons you will never be 100 % certain.

We had jetons that only one player used. A dealer from Knokke stole some jetons from him in Blankenberge not knowing that Blankenberge had specific jetons for him also.
Yes, the French roulette had tons of different jetons, all with a value on them. Baccara(t) had specific small denomination jetons for the tax (7%) on the play.

Jo from Belgium, the Dutch speaking part.