In a 1986 action titled Deposition, artists Josip Vaništa and Marijan Jevšovar and critic Radoslav Putar dutifully lugged one of Vaništa’s signature horizon-line paintings to a snowy forest outside Zagreb, Croatia, where they propped it against a tree. On return visits, the group would photograph the painting in its new environment, tracking the gradual damage to the snow-soaked canvas, until one day in the spring, when it disappeared altogether.

Decades earlier, Vaništa, Jevšovar, and Putar had served as founding members of Gorgona, an artistic alliance that, like Deposition, left little but