Did you also see the "0648" and "0678" cakes on eBay?

I can see the 888 being seen as lucky by the Chinese. But it seems
like the numbers are merely product IDs. Maybe a blend number.

Since it's printed on the package rather than stamped or handwritten
I'm stretching far enough to assume that it's been associated with that
collection of bricks from the moment they were first pressed together.

--Blair