. Steel rails; their history, properties, strength and manufacture, with notes on the principles of rolling stock and track design . Plate XVIII. — British Standard Tramway Rails. Crossing Frogs in Poor DATUM LINE. DATUM LINE of Brakes, Straight, Level Track. DATUM I JNE =— DATUM LINE

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Keywords: ., bookcentury1900, bookdecade1910, bookidsteelrailsth, bookyear1913