I just bought this little group of MOP jetons/plaques (maybe I overpaid...)

I don't know much about these sorts of chips, I just saw them and liked them.

I took the pic with a regular poker chip for a size compare.

To the left of the poker chip is a fancy 'AC' on the reverse is a '5'. There is a (serial?) number of 296.

To the right of the poker chip is a 'CI' in the reverse is a '5'. There is a (serial?) number of 1859.

The rest of the lot are all monogrammed 'BY'. There is one round '5', two '10', two '50', and two '100'.

I would like to know the casino name/country of these chips, and potential years of use. I'm willing to swap like-valued MOP chips for the extras of the 'BY' chips if anyone is interested. (Please make fair offers!)

-Oke