These amazing vintage Japanese pencils are the "9800" range by the Mitsubishi Pencil Company. They come in their original lime green box that reads "9800 - patented micro graphite lead".
Please not that this is NOT the recent re-edition, but rather the older original version. The original version referred to 'patented micro graphite lead' while the recent editions call it 'matured micro graphite lead'. You can find this reference on the box and pencils, and the pencils carry the original patent number. The original edition also carried the JIS (Japan Industrial Standards) logo while the recent edition doesn't.
The pencils are unsharpened and the box is complete with 12 pencils.
[Save on shipping] Combined shipping is available on this item! That means that the extra shipping cost for additional items is reduced. Have a look at my store for more vintage pencils and stationery from Japan and the world.