At the right is H&F RR No 170 at the Frederick Yard. To the left is Work Car No 15 and inside the barn appears to be Freight Motor No 5. Note that to the right of No 170 can be seen two of the Blue Ridge Transportation buses. You can also see a couple of sets of trucks on the adjacent siding.
No. 15  was a wood Line Car built by the CG&W in 1917 and acquired by the H&F in 1932. She was 32'-3" long and featured two Westinghouse 68 ( 40hp) motors with K-10 Controls.