▁lamp ▁were ▁used . ▁At ▁the ▁end ▁of ▁the ▁ 1 8 0 0 s , ▁the ▁installation ▁was ▁elect r ified . ▁Ferd in ando ▁I ▁de ' ▁Med ici , ▁Grand ▁Duke ▁of ▁T usc any ▁ordered ▁the ▁construction ▁of ▁w are h ouses ▁in ▁the ▁bas ement ▁in ▁ 1 5 8 4 , ▁which ▁were ▁later ▁transformed ▁into ▁L azz aret to ▁di ▁San ▁Roc co ▁and ▁a ▁ship building ▁yard . ▁In ▁ 1 9 1 1 , ▁the ▁l ighth ouse ▁passed ▁under ▁the ▁juris diction ▁of ▁the ▁Italian ▁Navy ▁where ▁it ▁remains ▁to ▁this ▁day . ▁ ▁The ▁tower ▁was ▁int act ▁until ▁June ▁ 2 0 , ▁ 1 9 4 4 ▁when ▁the ▁German ▁troops ▁ble w ▁it ▁up ▁as ▁the ▁Al lied ▁approached . ▁The ▁F an ale ▁was ▁re built ▁in ▁June ▁ 1 9 5 4 ▁according ▁to ▁the ▁original ▁project ▁with ▁material ▁recovered ▁from ▁the ▁ru ins ▁and ▁from ▁the ▁San ▁Giul iano ▁cave . ▁It ▁was ▁made ▁from ▁rein for ced ▁concrete ▁ 3 0 ▁cent im eters ▁thick ▁and ▁covered ▁extern ally ▁by ▁stone . ▁The ▁new ▁l ighth ouse ▁was ▁inaugur ated ▁on ▁September ▁ 1 6 , ▁ 1 9 5 6 ▁by ▁President ▁Giovanni ▁G ron chi ▁on ▁the ▁ 3 5 0 th ▁anni versary ▁of ▁Liv orno ' s ▁pro clam ation ▁as ▁a ▁city . ▁ ▁Description ▁The ▁tower ▁is ▁covered ▁by ▁grey ▁stone ▁and ▁the ▁lan tern ▁d ome ▁is ▁painted