European Open Procedure Tender For The Supply And Installation In The Field Of The "Live Tourist" Project Of N. 2 Display, N. 8 Multimedia Totems And 50 Signs Poles, 80 Wooden Poles With Pious Signs And Dedicated Website, Necessary For The Dissemination Of "Ring" Paths In Synergy And Connection Of The 4 Beneficiaries Of The Underworld In Question