We have stopped selling most cast metal spacing, but still make and supply brass, copper, and 2 pt metal spacing. We have some stock of original ATF spacing in original packaging and that is listed on the tabbed pages by point size. For most of your cast metal spacing needs, we recommend you contact M&H Type in San Francisco or Quaker City Type in Honey Brook, Penna.
Brass, copper, and lead thin spaces are precision cut using the original ATF equipment now owned by NA Graphics and it is provided in two ounce packages. For larger orders and economy, order by the pound. One pound of either brass or copper is a tremendous amount of spacing.