They are marked B & O RR.
Antique Baltimore & Ohio Railroad Shenango China 5pc, 3 Plates, 2 Bowls
Antique Baltimore & Ohio Railroad B & O RR Padlock Lock Rare Uncleaned Nice
ANTIQUE BALTIMORE & OHIO RAILROAD PLATE 9 1/4" FLOW BLUE READ
AKANE MODELS HO SCALE BRASS STEAM LOCOMOTIVE 2-8-2 MIKADO BALTIMORE & OHIO DCC !
2 Vintage Baltimore & Ohio B&O Railroad Chocolate Cup & Saucer ~ Shenango China
Antique 6.25" B&O Baltimore & Ohio Railway Railroad Silverplate Tip Tray
