There was some talk on the Proto48 Yahoo board today about rail sizes and widths. I picked up a document put out by the AT&SF Railroad a while ago. I thought I’d scan it tonight and post it to add to the discussion. Above is page 2 of the document below is a link to the scan in a PDF file.
Table of Weights & Dimensions of Rail
It contains the dimensions and sizes of rail made by Illinois Steel Company, Carnegie Steel Company, Pennsylvania Steel Company, Bethlehem Steel Company, Lackawanna Steel Company, Cambria Steel Company Colorado Fuel & Iron Company and Dominion Iron & Steel Company. There is no date on this document.
One of the things I found interesting was that a number of the different manufacturers had different sizes to the rail even though they are the same weight.