Number 15 was built in May 1941 ( c/n 1242 ), retired and traded to EMD in June 1968. Note it was equipped with a visor over the headlight, which I believe was installed to make the light less noticeable from the air, the fear being air raids from Japan during World War II. I count 11 men servicing the locomotives, although one man is carrying a grip bag, so maybe he is part of the locomotive crew. Also of interest ( to me ) is the man on the right stacking white bags on a baggage cart, and he is standing on something that is covered with a white fabric cloth.

Amplified with 174 additional chair car seats (provided by a pair of 52-seat cars and one-of-a-kind 70 seater SILVER LEAF, the latter built for the General Pershing Zephyr), No. 1 (the Denver Zephyr) gets out of Chicago behind E5s SILVER SPEED and SILVER POWER on August 21, 1949. Passengers aboard the amplified portion of the Colorado-bound Zephyr will drink and dine aboard 36-seat diner SILVER SPOON riding first-out behind the E5B. Meanwhile, Gulf Mobile & Ohio Alco S2 No. 11 gathers head-end cars for spotting at the mail terminal (they'll go south tonight on the Advance Midnight Special to Saint Louis) as a GM&O E7 (visible immediately above SILVER SPOON's rooftop kitchen vents) awaits its next call to duty in GM&O's tiny Harrison St. yard. Photographer Jim Scribbins recorded the action from the Polk St. overpass.