[PRCo] loop on carson st

[Derrick J Brashear]

http://images.library.pitt.edu/cgi-bin/i/image/image-idx?image.x=411&image.y=624&sid=34b7dbaf167b711f78d4d5bb8f711872&xc=1&g=imls&c=accd&q1=steel&rgn1=ic_all&ox=1&oy=0&lastres=2&res=1&width=595&height=735&maxw=2382&maxh=2940&subview=getsid&lasttype=boolean&view=entry&viewid=ACCD2580.TIF&entryid=x-msp285.b013.f29.i09&cc=accd&quality=2&resnum=104&evl=full-image
or search for MSP285.B013.F29.I09

note the loop in the right forground and the double track further down 
carson in the background