"The Metallurgy and Processing of the Packard-Built Rolls-Royce Merlin
Crankshaft," Frey, M.L., Proceedings of the Society for Experimental Stress Analysis, Vol. II, No. 2, 1944,
"The Metallurgy and Processing of the Packard-Built Rolls-Royce Merlin
Crankshaft," Frey, M.L., Proceedings of the Society for Experimental Stress Analysis, Vol. II, No. 2, 1944,
Its referenced in here, in this AEHS article, so probably if you contact AEHS and ask, they can assist and contact the author,
who presumably must have a copy.