“Na.Tur.Arte” The Valparina Wilderness Area Between Hospitability, Art And Nature” Cup Master E52H23004160005 – Creation Of A Multimedia Path Inside The Spaces Of The Former School Center Of Roncobello – Cup Intervention: E81G23000190001. Contract For The Supply, Transport, Assembly/Installation Of Internal Signs For The Immersed Set-Up At The Former School Center Of Roncobello (Bg).