Italian road sign: length of motorway where roadworks signalized using mobile luminous sign. Reconstruction of road sign according to decree n. 156 of 1990, that introduced orange background (with black symbols and white text) for direction, preselection, intersection and striped road signs concerning roadworks (and that also updated the warning and regulatory signs introduced in 1959). Note that decree n.156 of 1990 didn't show any picture of new roadwork signs and thus the image shown is an adaptation of previous sign; it is possible that different graphical variants of the sign could have been used. Used until 1992.
Circolare Ministero dei Lavori Pubblici n. 2900 del 20 novembre 1984 Segnaletica relativa a lavori sulle autostrade e strade con analoghe caratteristiche *Decreto Ministero Lavori Pubblici n. 156 del 7 aprile 1990 (G.U. serie generale n. 143 del 21-06-1990, Supplemento Ordinario n. 44)
Original:  Ministero dei Lavori Pubblici Vectorization:  Earthshaker13