| Here is the lower illustration on page 69 of the "Pennsylvania Railroad Altoona Machine Shops Construction Number List: 1866-1904." It was compiled by Joseph D. Lovell, and published by the Library Of American Transportation during 1984. Photo Caption: "Shown at an unknown location is No. 287, a Class M 0-6-0 switcher. The locomotive was built in November 1893 and later became Class B-4a." |