Can'y quite work the second out, but wonder if it has anything to do with Gustav Eiffel who died in 1923. Eiffel Tower L I in Paris? Can't think what L I is!
1923 Earliest(?) Traffic light introduced in Paris
http://www.quido.cz/objevy/semafor.a.htm
Could be??
Re: your previous post Donald/Malcolm Campbell. You are correct, it was Malcolm.
Also I think I said 'smashes' WLSR. Probably sets is better!
Maggie
Thank you Maggie for your intuitive answer. I don't think I would have ever discovered that Traffic Lights were introduced into Paris in 1923. I will try to check out whether they were 'Electric' lights. Also agree re Donald/Malcolm Campbell answer.