There are two spots on the saucer back. They appear to be from where the saucer was in setting when produced.
Baltimore & Ohio Railroad Lamberton China Cup & Saucer
Baltimore & Ohio Railroad Lamberton China Cup & Saucer 1827-1927
Baltimore & Ohio Railroad Lamberton China Cup & Saucer 1827-1927 Damage
Baltimore & Ohio Railroad Lamberton China Thomas Viaduct 6 3/4" Plate.
1927 BALTIMORE + OHIO RAILROAD CENTENARY Lamberton China CUP + SAUCER Diner Car
BALTIMORE & OHIO Railroad CENTENARY Demitasse Cup LAMBERTON CHINA B&O Patented
