Not the tiny "Montezuma" of the D&RG, but a similar 2-4-0 of of the other Rio Grande in Texas, a 42-inch gauge line. Small photo from Ed Kelley of it displayed in a museum in Brownsville, Texas:

http://www.ngdiscussion.net/cgi-bin/NGD ... read=52319

It was built as a 2-4-2T, but later converted to a tender engine. It went on display in the 1930s and suffered the ravages typical to most park displays. Finally got some recognition and restoration recently. It is a BLW product of 1872.