L1 - Confirmation signal
Material: aluminum profile
http://www.sinalarte.pt/wp-content/uploads/2012/07/L1-290x201.jpg
290
201

N1a - Beginning of locality
Material: aluminum profile, aluminum or galvanized sheet
http://www.sinalarte.pt/wp-content/uploads/2012/07/N1a-290x131.jpg
290
131

N1b - Beginning of locality
Material: aluminum profile, aluminum or galvanized sheet
http://www.sinalarte.pt/wp-content/uploads/2012/07/N1b-290x174.jpg
290
174

N2a - End of locality
Material: aluminum profile, aluminum or galvanized sheet
http://www.sinalarte.pt/wp-content/uploads/2012/07/N2a-290x131.jpg
290
131

N2b - End of locality
Material: aluminum profile, aluminum or galvanized sheet
http://www.sinalarte.pt/wp-content/uploads/2012/07/N2b-290x174.jpg
290
174
