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Dean Dettman's Collection
 
5/4/2024
 
 
 
 
 
Owner: Union Pacific Railroad Company
Model:Rebuilt EMD Yard SlugBuilt As:UP 306B (GP9B)
Serial Number:23712Order No:5552
Frame Number:5552-B7Built:9/1957
Notes:reblt 9/76 from 306B, retired 8/89
Other locos with this serial:  UP 306B(GP9B) UP S6(Yard Slug)
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