Robert,
it could be if you want it to be
but UPD&G #153 (reno 1896 #2) which had arched cabside windows, was in the staged loco collision in 1896 sold/scrapped 1898 while C&S#2 was holding down the Morrison run at the t-o-c.
In the previously posted DPL picture taken at Morrison, the #2 has Antlers above the Headlight and a pair of tall Flagstaffs on the Pilotbeam. Those correspond with the details of easily identified C&S#2 at Denver(on 3railed track) pg 15 Narrow Gauge Pictorial vi (mis-located in caption as being at Como(?!!!). No Antlers on the locos being wrecked in the fields of Denver.
And I haven't seen anything to suggest that the UPD&G 153 received the #2 in service, references to it at the staged collision are as the 153 and of course the other, UPD&G 154 reno'd #4.
UpSideDownC
in New Zealand