[mrmummert]

Pretty Close.

I think the locomotive in the Background is a Frisco 4-8-4 of the 4500 series, number 4501. Bell, hand rails, and headlight match.

The foreground locomotive has to be one of the monster 4-8-8-4 "Big Boy"s of the Union Pacific, number 4018. You can tell by the coupler door and louvers in the nose.

If my locomotive sleuthing is correct, then this picture was taken at the Museum of the American Railroad in Dallas Texas.

Just a wild guess, I'm a narrow gauge train nut. Give me big mountains and small locomotives.
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Hi.... No I mean the picture next to dave's signature picture. thats no 4-8-4
in the picture....then again I'm a Pennsy nut ,closest thing they had to that was the T-1.
BTW....who took the thread picture? and note Dave has a camera.