| Location | Dundalk, MD |
| GRS Co. upper quadrant (2 part spectacle) | |
| CSX ex-B&O distant semaphore signal (Rule: C-285-A) | |
| Indication: approach next signal prepared to stop | |
| Sparrows Point branch near swing bridge to Greys Yard, | |
| along Chesterwood Road (southeast of Baltimore) | |
| Information from Tom Kraemer and Michael Watnoski |