Hi Amy,
The 5F chip was issued in a few diddernt sizes and shades of pearly-white. If yours is larger than 1-1/2" -- then you have one of the older ones, but I think yours may be a kind of beige, pearly-white. Some of their higher-denomination chips are as big as 2-1/2 inches round. Several of the larger European casinos have been getting-away from the old-world-type casino chips and replacing them with our American-style.

I'll be posting examples (from time-to-time) of all the different known types of chips used around the world to Travis' listserv in the not-too-far-off future.
J
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