In message , at 16:03:31 on
Thu, 29 Dec 2011, Robert Neville remarked:
Sorry - I should have made it clear - the ham was presliced, with pricing in
metric and imperial units by weight. I assumed as it was priced by weight that
it would be sold by weight and that my stating "approximately" 100g would have
been sufficient for the server to work out how many slices that would equate to.
Later I noticed that other customers were asking for sliced lunchmeats by the
slice count as well - so it must be a local custom.

Most people make a sandwich by counting the number of slices of meat.
It's generally not paper-thin or wrinkled up, like many USA-ian sliced
meat is sold.
--
Roland Perry