Most interesting and excellent effort Dr. Hause. From what I can glean even as early as the 1920s folks knew very little about the composition and source of tubes stamped Armor, High-Pressure, Homo-Tensile, Nitro, Titanic, Vulcan, etc., but only that the names denoted different grades or recipes of steel. If I'm not mistaken all the aformentioned names were American steel types.
I wonder if the Whiteley Steel Company was the source of the "Crown Steel" and if we could pen them a letter to get their list of manufactures using their steel:
http://books.google.com/books?id=QaFMAAA...p;q&f=false ????
Kind Regards,
Raimey
rse
