Artifacts 15
Every copy this mystery rests on, each with its own key and its distance from the original.
Photo1 step from object
Leonid Kulik, the expedition to the Tunguska event · Public domain
Photo2 steps from object
Kulik expeditions; digitised by the Bologna Tunguska team · free to use with credit to the site
Photo1 step from object
Leonid Kulik's expedition · Public domain (Russia; published 1931)
Photo2 steps from object
Kulik's 1938 aerial survey; digitised by the Bologna Tunguska team · free to use with credit to the site
Photo2 steps from object
photographer not named · Public domain (Russia; published 1931)
Photo1 step from object
Kulik expedition · Public domain (Russia; published 1931)
Photo2 steps from object
not named · Public domain (Russia; published 1931)
Photo2 steps from object
Kulik expeditions, as printed in Vokrug Sveta (1931) · Public domain (Russia; published 1931)
Map1 step from object
Vokrug Sveta, from the Kulik expeditions · Public domain (Russia; published 1931)
Document2 steps from object
F. J. W. Whipple · publisher
Photo2 steps from object
Cmbrenneisen58 · CC BY 4.0
Document2 steps from object
Ari Ben-Menahem · publisher
Transcription2 steps from object
Andrei Ol'khovatov · arXiv non-exclusive licence
Photo2 steps from object
Cmbrenneisen58 (Wikimedia Commons) · CC BY 4.0
Document2 steps from object
University of Bologna Tunguska team · free to use with credit to the site