Eco-friendly pencils with unpainted wood are popular (or at least produced) these days, but that’s not what these are —
They appear to be samples used to test pencil manufacturing processes. V.D. here stands for Venus Drawing, I believe.
The similar one below is apparently a test for an Autograph by Venus —
The Autograph brand was around for a long time, in many varieties. This one has a matte white panel where you can write your name — your autograph. Japanese “kakikata” pencils for children often have this feature.
Another pair, maybe also for testing —
Discerning collectors have noticed that some Eagle and Eberhard Faber pencils have a small dot added to the standard design. The dot may represent some aspect of the pencil’s production. An example of this variation for Eagle Turquoise Drawing —
On the reverse is what at first glance appears to be the common “dotted X” decorative feature. But it is missing one of the dots. In fact, a variety of strange symbols can be found on these pencils —
I’m pretty sure that they are used for quality control purposes. It looks like the various shapes with different numbers of dots are some kind of code, perhaps for different dates, equipment, and sources of material.