Graphite with red highlights.
A few drawings from the1979 Viking Press Snow White book. See a few more of these pics in an earlier Archive entry.
Book scans via the late Michael Sporn Animation blog.
Gustaf Tenggren's pencil layout of Snow White being led from the dark forest by her new animal friends.
Images via Heritage Auctions + Hakes + Profiles in History.
Be sure to also check out the stunning dark forest drawings by Ferdinand Horvath. And a couple more in the earlier post on Tenggren.