File:Pennsylvania Railroad Class S1 No. 6100 the Locomotive of Tomorrow at the 1939 NY World's Fair.jpg
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Size of this preview: 773 × 599 pixels. Other resolutions: 310 × 240 pixels | 619 × 480 pixels | 991 × 768 pixels | 1,280 × 992 pixels | 2,301 × 1,784 pixels.
Original file (2,301 × 1,784 pixels, file size: 712 KB, MIME type: image/jpeg)