Real world company prefixes

0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M n O P Q R S T U V W X Y Z Ø
H& H0 H1 H2 H3 H4 H5 H6 H7 H8 H9 HA HB HC HD HE HF HG HH HI HJ HK HL HM HN HO HP HQ HR HS HT HU HV HW HX HY HZ
H&B H&S H&T
H&SW
1 H&SW Halifax and Southwestern Ry. (Canadian National Rys.) 8/1920-7/1923   NAKINA
2 H&SW CANADIAN NATIONAN RAILWAY [HALIFAX & SOUTHWESTERN RWY.]     PWRC