March 1995 at Quincy. Only time I have seen one of these former GP9 rebuilds in person. Burlington Northern shipped a whole bunch of tired locomotives to be rebuilt in the 1991-92 time frame.
In checking my collection, I found I had a picture of the locomotive this was rebuilt from, just before being shipped to the company that did the work.
BN 1526 was rebuilt from the 1734. My shot is from June 15, 1992 at Pasco, where a few units were set up for shipment.