BML #15 (exB&M #2360), an 1897 baggage-mail car acquired from the Boston & Maine RR in September, 1927, served the B&MLRR as its Railway Post Office (RPO) until it was converted to a tool car in December, 1949. (It was replaced as the line's RPO by BML #73 (exBAR #563) which was acquired from the Bangor & Aroostook RR in June, 1948.) The B&ML's last mail run on February 5, 1960, was also the last run by an RPO operated by a short line railroad in the United States. "The Cooper Collection of U.S. Railroad History" (Private Collection) "NOTE" This image is from a group of photographs that were taken of the Belfast & Moosehead Lake Railroad in 1947 by the late Victor H. Rawstron (1919-1997) who both sold the original negatives and irrevocably transferred all rights to these photographs to the uploader in 1989.