Rock Island U25B leading a freight train at Sandown Junction, in Denver, Colorado in 1969. This very large 3-3/8" x 2-1/4" medium format negative is tack sharp (you can clearly read "Aviation Industrial Supply" on the building in the distance) and is exposed very well. Negative ships well protected via first class mail to U.S. addresses for $1. You may combine shipping on multiple orders -- that is, pay only $1 total shipping for as many slides and negatives as you get at one time to a U.S. address. (Any amount of slides to foreign addresses for 3 dollars US). Please email me with any questions. Thanks for bidding!