FIGURE 3. Drawings of the mammoth tusk with human-made marks, a side-scraper and a bifacial stone tool (knife?) that were uncovered from the excavated river channel deposits at the Mamontovaya Kurya section.
From the following article:
Human presence in the European Arctic nearly 40,000 years ago
Pavel Pavlov, John Inge Svendsen and Svein Indrelid
Nature 413, 64-67(6 September 2001)
doi:10.1038/35092552
