Track weight

Some photos in TRAINS recent piece on modern track shows the weight and age on the side. Does all track have this?
Jock Ellis
Cumming, GA US of A
Georgia Association of Railroad Passengers

Yes plus additional information, such as section and who rolled it.

Also, in addition to the raised letters, you have stamped numbers on the othe other side known as the “Heat Numbers” that give the pedigree of the rail and where it came from in the Billet/Ingot…