Artifacts 14
Every copy this mystery rests on, each with its own key and its distance from the original.
Document1 step from object
Morishima et al. · arXiv non-exclusive licence
Document1 step from object
Richard William Howard-Vyse and John Shae Perring · Public domain
Document1 step from object
Procureur et al. · CC BY 4.0
Document2 steps from object
Procureur et al. · CC BY 4.0