This is an HO Scale model of the EMD-built low nose used in 1st generation GP and SD locomotives. This is the sloped-top nose offered from EMD and was used on the late GP9, GP18, GP20, SD18, and SD24. Some wrecked GP7s and GP9s were rebuilt by EMD using the sloped-top nose.
Prototype Examples:
CRIP 1321 (rrpicturearchives.net)
EMD's 2000 HP GP20 Locomotive | The Union Pacific Railroad r… | Flickr
RailPictures.Net Photo: CIM 60 Chicago & Illinois Midland EMD SD18 at Springfield, Illinois by Roger Lalonde
This listing is just for the nose portion and is designed to fit almost any 1st generation GP or SD (with a correct scale width hood). The class lights have holes incorporated to allow LEDs to be added.