Topic summary
13 (BMT rapid transit service)

13 was the BMT's designation for service on the BMT Fulton Street Line, not to be confused with today's IND Fulton Street Line, which uses a portion of the old BMT line at its east end.
Topic summary

13 was the BMT's designation for service on the BMT Fulton Street Line, not to be confused with today's IND Fulton Street Line, which uses a portion of the old BMT line at its east end.