I am not a West Side aficionado, but a few thing are jumping out at me in the photos. Is it possible that ph.1 and ph.3 are the same caboose and ph.2 is a different one? What suggests this is the difference in siding, ph.2 looks smooth while the other two appear to have a V siding. In ph. 2 the vertical grab iron on the body is longer than the other two images. The hand rails on the 1st and 3rd photos are very similar with the appearance that the side part has simply been shortened using the same vertical up right. Can anyone tell if the lantern on the cupola is present on the 1st photo? My thought of 2 different cabooses falls apart a bit when you notice that there is a horizontal grab iron on either side of the door in the top photo only. Wow and I thought early sVRy caboose history was difficult to ascertain.