General Motors advertisement for its new line of Winton diesel engines.  Union Pacific's M-10001, shown in the ad, was the first train to be equipped with the new version.  Seller dates this as 1935; the train was delivered to the railroad in late 1934, when it set the record from <a href="https://en.wikipedia.org/wiki/en:M-10001" class="extiw" title="w:en:M-10001">Los Angeles to New York</a>.  However, it did not enter regular service until May 1935 as the <i>City of Portland</i>, following some rebuilding at Pullman.  With this close-up, the many rivets that held the aluminum train together can be seen, making it much different from the <a href="https://en.wikipedia.org/wiki/en:Budd_Company" class="extiw" title="w:en:Budd Company">Budd Company's</a> stainless steel, <a href="https://en.wikipedia.org/wiki/en:Shot_welding" class="extiw" title="w:en:Shot welding">shot-welded</a> Zephyr streamliners for the Burlington.
General Motors
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